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| 193 | 193 | Web Content Accessibility Guidelines—for People Who Haven't Read Them | I’ve been a huge fan of the Web Content Accessibility Guidelines 2.0 since the World Wide Web Consortium (W3C) published them, nine years ago. I’ve found them practical and future-proof, and I’ve found that they can save a huge amount of time for designers and developers. You can apply them to anything that you can open in a browser. My favourite part is when I use the guidelines to make a website accessible, and then attend user-testing and see someone with a disability easily using that website. Today, the United Nations International Day of Persons with Disabilities, seems like a good time to re-read Laura Kalbag’s explanation of why we should bother with accessibility. That should motivate you to devour this article. If you haven’t read the Web Content Accessibility Guidelines 2.0, you might find them a bit off-putting at first. The editors needed to create a single standard that countries around the world could refer to in legislation, and so some of the language in the guidelines reads like legalese. The editors also needed to future-proof the guidelines, and so some terminology—such as “time-based media” and “programmatically determined”—can sound ambiguous. The guidelines can seem lengthy, too: printing the guidelines, the Understanding WCAG 2.0 document, and the Techniques for WCAG 2.0 document would take 1,200 printed pages. This festive season, let’s rip off that legalese and ambiguous terminology like wrapping paper, and see—in a single article—what gifts the Web Content Accessibility Guidelines 2.0 editors have bestowed upon us. Can your users perceive the information on your website? The first guideline has criteria that help you prevent your users from asking “What the **** is this thing here supposed to be?” 1.1.1 Text is the most accessible format for information. Screen readers—such as the “VoiceOver” setting on your iPhone or the “TalkBack” app on your Android phone—understand text better than any other format. The same applies for other assistive technology, such as translation apps and Braill… | 2017 | Alan Dalton | alandalton | 2017-12-03T00:00:00+00:00 | https://24ways.org/2017/wcag-for-people-who-havent-read-them/ | code |
| 293 | 293 | A Favor for Your Future Self | We tend to think about the future when we build things. What might we want to be able to add later? How can we refactor this down the road? Will this be easy to maintain in six months, a year, two years? As best we can, we try to think about the what-ifs, and build our websites, systems, and applications with this lens. We comment our code to explain what we knew at the time and how that impacted how we built something. We add to-dos to the things we want to change. These are all great things! Whether or not we come back to those to-dos, refactor that one thing, or add new features, we put in a bit of effort up front just in case to give us a bit of safety later. I want to talk about a situation that Past Alicia and Team couldn’t even foresee or plan for. Recently, the startup I was a part of had to remove large sections of our website. Not just content, but entire pages and functionality. It wasn’t a very pleasant experience, not only for the reason why we had to remove so much of what we had built, but also because it’s the ultimate “I really hope this doesn’t break something else” situation. It was a stressful and tedious effort of triple checking that the things we were removing weren’t dependencies elsewhere. To be honest, we wouldn’t have been able to do this with any amount of success or confidence without our test suite. Writing tests for code is one of those things that developers really, really don’t want to do. It’s one of the easiest things to cut in the development process, and there’s often a struggle to have developers start writing tests in the first place. One of the best lessons the web has taught us is that we can’t, in good faith, trust the happy path. We must make sure ourselves, and our users, aren’t in a tough spot later on because we only thought of the best case scenarios. JavaScript Regardless of your opinion on whether or not everything needs to be built primarily with JavaScript, if you’re choosing to build a JavaScript heavy app, you absolutely should be writing some combination of u… | 2016 | Alicia Sedlock | aliciasedlock | 2016-12-03T00:00:00+00:00 | https://24ways.org/2016/a-favor-for-your-future-self/ | code |
| 163 | 163 | Get To Grips with Slippy Maps | Online mapping has definitely hit mainstream. Google Maps made ‘slippy maps’ popular and made it easy for any developer to quickly add a dynamic map to his or her website. You can now find maps for store locations, friends nearby, upcoming events, and embedded in blogs. In this tutorial we’ll show you how to easily add a map to your site using the Mapstraction mapping library. There are many map providers available to choose from, each with slightly different functionality, design, and terms of service. Mapstraction makes deciding which provider to use easy by allowing you to write your mapping code once, and then easily switch providers. Assemble the pieces Utilizing any of the mapping library typically consists of similar overall steps: Create an HTML div to hold the map Include the Javascript libraries Create the Javascript Map element Set the initial map center and zoom level Add markers, lines, overlays and more Create the Map Div The HTML div is where the map will actually show up on your page. It needs to have a unique id, because we’ll refer to that later to actually put the map here. This also lets you have multiple maps on a page, by creating individual divs and Javascript map elements. The size of the div also sets the height and width of the map. You set the size using CSS, either inline with the element, or via a CSS reference to the element id or class. For this example, we’ll use inline styling. <div id="map" style="width: 400px; height: 400px;"></div> Include Javascript libraries A mapping library is like any Javascript library. You need to include the library in your page before you use the methods of that library. For our tutorial, we’ll need to include at least two libraries: Mapstraction, and the mapping API(s) we want to display. Our first example we’ll use the ubiquitous Google Maps library. However, you can just as easily include Yahoo, MapQuest, or any of the other supported libraries. Another important aspect of the mapping libraries is that many of them require an API k… | 2007 | Andrew Turner | andrewturner | 2007-12-02T00:00:00+00:00 | https://24ways.org/2007/get-to-grips-with-slippy-maps/ | code |
| 247 | 247 | Managing Flow and Rhythm with CSS Custom Properties | An important part of designing user interfaces is creating consistent vertical rhythm between elements. Creating consistent, predictable space doesn’t just make your web pages and views look better, but it can also improve the scan-ability. Browsers ship with default CSS and these styles often create consistent rhythm for flow elements out of the box. The problem is though that we often reset these styles with a reset. Elements such as <div> and <section> also have no default margin or padding associated with them. I’ve tried all sorts of weird and wonderful techniques to find a balance between using inherited CSS while also levelling the playing field for component driven front-ends with very little success. This experimentation is how I landed on the flow utility, though and I’m going to show you how it works. Let’s dive in! The Flow utility With the ever-growing number of folks working with component libraries and design systems, we could benefit from a utility that creates space for us, only when it’s appropriate to do so. The problem with my previous attempts at fixing this is that the spacing values were very rigid. That’s fine for 90% of contexts, but sometimes, it’s handy to be able to tweak the values based on the exact context of your component. This is where CSS Custom Properties come in handy. The code .flow { --flow-space: 1em; } .flow > * + * { margin-top: var(--flow-space); } What this code does is enable you to add a class of flow to an element which will then add margin-top to sibling elements within that element. We use the lobotomised owl selector to select these siblings. This approach enables an almost anonymous and automatic system which is ideal for component library based front-ends where components probably don’t have any idea what surrounds them. The other important part of this utility is the usage of the --flow-space custom property. We define it in the .flow component and each element within it will be spaced by --flow-space, by default. The beauty about setting this as a … | 2018 | Andy Bell | andybell | 2018-12-07T00:00:00+00:00 | https://24ways.org/2018/managing-flow-and-rhythm-with-css-custom-properties/ | code |
| 138 | 138 | Rounded Corner Boxes the CSS3 Way | If you’ve been doing CSS for a while you’ll know that there are approximately 3,762 ways to create a rounded corner box. The simplest techniques rely on the addition of extra mark-up directly to your page, while the more complicated ones add the mark-up though DOM manipulation. While these techniques are all very interesting, they do seem somewhat of a kludge. The goal of CSS is to separate structure from presentation, yet here we are adding superfluous mark-up to our code in order to create a visual effect. The reason we are doing this is simple. CSS2.1 only allows a single background image per element. Thankfully this looks set to change with the addition of multiple background images into the CSS3 specification. With CSS3 you’ll be able to add not one, not four, but eight background images to a single element. This means you’ll be able to create all kinds of interesting effects without the need of those additional elements. While the CSS working group still seem to be arguing over the exact syntax, Dave Hyatt went ahead and implemented the currently suggested mechanism into Safari. The technique is fiendishly simple, and I think we’ll all be a lot better off once the W3C stop arguing over the details and allow browser vendors to get on and provide the tools we need to build better websites. To create a CSS3 rounded corner box, simply start with your box element and apply your 4 corner images, separated by commas. .box { background-image: url(top-left.gif), url(top-right.gif), url(bottom-left.gif), url(bottom-right.gif); } We don’t want these background images to repeat, which is the normal behaviour, so lets set all their background-repeat properties to no-repeat. .box { background-image: url(top-left.gif), url(top-right.gif), url(bottom-left.gif), url(bottom-right.gif); background-repeat: no-repeat, no-repeat, no-repeat, no-repeat; } Lastly, we need to define the positioning of each corner image. .box { background-image: url(top-left.gif), url(top-right.gif), url(bottom-left.gif), url(bottom-right… | 2006 | Andy Budd | andybudd | 2006-12-04T00:00:00+00:00 | https://24ways.org/2006/rounded-corner-boxes-the-css3-way/ | code |
| 333 | 333 | The Attribute Selector for Fun and (no ad) Profit | If I had a favourite CSS selector, it would undoubtedly be the attribute selector (Ed: You really need to get out more). For those of you not familiar with the attribute selector, it allows you to style an element based on the existence, value or partial value of a specific attribute. At it’s very basic level you could use this selector to style an element with particular attribute, such as a title attribute. <abbr title="Cascading Style Sheets">CSS</abbr> In this example I’m going to make all <abbr> elements with a title attribute grey. I am also going to give them a dotted bottom border that changes to a solid border on hover. Finally, for that extra bit of feedback, I will change the cursor to a question mark on hover as well. abbr[title] { color: #666; border-bottom: 1px dotted #666; } abbr[title]:hover { border-bottom-style: solid; cursor: help; } This provides a nice way to show your site users that <abbr> elements with title tags are special, as they contain extra, hidden information. Most modern browsers such as Firefox, Safari and Opera support the attribute selector. Unfortunately Internet Explorer 6 and below does not support the attribute selector, but that shouldn’t stop you from adding nice usability embellishments to more modern browsers. Internet Explorer 7 looks set to implement this CSS2.1 selector, so expect to see it become more common over the next few years. Styling an element based on the existence of an attribute is all well and good, but it is still pretty limited. Where attribute selectors come into their own is their ability to target the value of an attribute. You can use this for a variety of interesting effects such as styling VoteLinks. VoteWhats? If you haven’t heard of VoteLinks, it is a microformat that allows people to show their approval or disapproval of a links destination by adding a pre-defined keyword to the rev attribute. For instance, if you had a particularly bad meal at a restaurant, you could signify your dissaproval by adding a rev… | 2005 | Andy Budd | andybudd | 2005-12-11T00:00:00+00:00 | https://24ways.org/2005/the-attribute-selector-for-fun-and-no-ad-profit/ | code |
| 206 | 206 | Getting Hardboiled with CSS Custom Properties | Custom Properties are a fabulous new feature of CSS and have widespread support in contemporary browsers. But how do we handle browsers without support for CSS Custom Properties? Do we wait until those browsers are lying dead in a ditch before we use them? Do we tool up and prop up our CSS using a post-processor? Or do we get tough? Do we get hardboiled? Previously only pre-processing tools like LESS and Sass enabled developers to use variables in their stylesheets, but now Custom Properties have brought variables natively to CSS. How do you write a custom property? It’s hardly a mystery. Simply add two dashes to the start of a style rule. Like this: --color-text-default : black; If you’re more the underscore type, try this: --color_text_default : black; Hyphens or underscores are allowed in property names, but don’t be a chump and try to use spaces. Custom property names are also case-sensitive, so --color-text-default and --Color_Text_Default are two distinct properties. To use a custom property in your style rules, var() tells a browser to retrieve the value of a property. In the next example, the browser retrieves the black colour from the color-text-default variable and applies it to the body element: body { color : var(--color-text-default); } Like variables in LESS or Sass, CSS Custom Properties mean you don’t have to be a dumb mug and repeat colour, font, or size values multiple times in your stylesheets. Unlike a preprocessor variable though, CSS Custom Properties use the cascade, can be modified by media queries and other state changes, and can also be manipulated by Javascript. (Serg Hospodarets wrote a fabulous primer on CSS Custom Properties where he dives deeper into the code and possible applications.) Browser support Now it’s about this time that people normally mention browser support. So what about support for CSS Custom Properties? Current versions of Chrome, Edge, Firefox, Opera, and Safari are all good. Internet Explorer 11 and before? Opera Mini? Nasty. Sound familiar? Can I Use css… | 2017 | Andy Clarke | andyclarke | 2017-12-13T00:00:00+00:00 | https://24ways.org/2017/getting-hardboiled-with-css-custom-properties/ | code |
| 246 | 246 | Designing Your Site Like It’s 1998 | It’s 20 years to the day since my wife and I started Stuff & Nonsense, our little studio and my outlet for creative ideas on the web. To celebrate this anniversary—and my fourteenth contribution to 24 ways— I’d like to explain how I would’ve developed a design for Planes, Trains and Automobiles, one of my favourite Christmas films. My design for Planes, Trains and Automobiles is fixed at 800px wide. Developing a <frameset> framework I’ll start by using frames to set up the framework for this new website. Frames are individual pages—one for navigation, the other for my content—pulled together to form a frameset. Space is limited on lower-resolution screens, so by using frames I can ensure my navigation always remains visible. I can include any number of frames inside a <frameset> element. I add two rows to my <frameset>; the first is for my navigation and is 50px tall, the second is for my content and will resize to fill any available space. As I don’t want frame borders or any space between my frames, I set frameborder and framespacing attributes to 0: <frameset frameborder="0" framespacing="0" rows="50,*"> […] </frameset> Next I add the source of my two frame documents. I don’t want people to be able to resize or scroll my navigation, so I add the noresize attribute to that frame: <frameset frameborder="0" framespacing="0" rows="50,*"> <frame noresize scrolling="no" src="nav.html"> <frame src="content.html"> </frameset> I do want links from my navigation to open in the content frame, so I give each <frame> a name so I can specify where I want links to open: <frameset frameborder="0" framespacing="0" rows="50,*"> <frame name="navigation" noresize scrolling="no" src="nav.html"> <frame name="content" src="content.html"> </frameset> The framework for this website is simple as it contains only two horizontal rows. Should I need a more complex layout, I can nest as many framesets—and as many individual documents—as I need: <frameset rows="50,*"> <frame name="navigation"> <frameset cols="25%,*"> <frame name="sideba… | 2018 | Andy Clarke | andyclarke | 2018-12-23T00:00:00+00:00 | https://24ways.org/2018/designing-your-site-like-its-1998/ | code |
| 215 | 215 | Teach the CLI to Talk Back | The CLI is a daunting tool. It’s quick, powerful, but it’s also incredibly easy to screw things up in – either with a mistyped command, or a correctly typed command used at the wrong moment. This puts a lot of people off using it, but it doesn’t have to be this way. If you’ve ever interacted with Slack’s Slackbot to set a reminder or ask a question, you’re basically using a command line interface, but it feels more like having a conversation. (My favourite Slack app is Lunch Train which helps with the thankless task of herding colleagues to a particular lunch venue on time.) Same goes with voice-operated assistants like Alexa, Siri and Google Home. There are even games, like Lifeline, where you interact with a stranded astronaut via pseudo SMS, and KOMRAD where you chat with a Soviet AI. I’m not aiming to build an AI here – my aspirations are a little more down to earth. What I’d like is to make the CLI a friendlier, more forgiving, and more intuitive tool for new or reluctant users. I want to teach it to talk back. Interactive command lines in the wild If you’ve used dev tools in the command line, you’ve probably already used an interactive prompt – something that asks you questions and responds based on your answers. Here are some examples: Yeoman If you have Yeoman globally installed, running yo will start a command prompt. The prompt asks you what you’d like to do, and gives you options with how to proceed. Seasoned users will run specific commands for these options rather than go through this prompt, but it’s a nice way to start someone off with using the tool. npm If you’re a Node.js developer, you’re probably familiar with typing npm init to initialise a project. This brings up prompts that will populate a package.json manifest file for that project. The alternative would be to expect the user to craft their own package.json, which is more error-prone since it’s in JSON format, so something as trivial as an extraneous comma can throw an error. Snyk Snyk is a dev tool that checks for known vulnerabilities… | 2017 | Anna Debenham | annadebenham | 2017-12-11T00:00:00+00:00 | https://24ways.org/2017/teach-the-cli-to-talk-back/ | code |
| 244 | 244 | It’s Beginning to Look a Lot Like XSSmas | I dread the office Secret Santa. I have a knack for choosing well-meaning but inappropriate presents, like a bottle of port for a teetotaller, a cheese-tasting experience for a vegan, or heaven forbid, Spurs socks for an Arsenal supporter. Ok, the last one was intentional. It’s the same with gifting code. Once, I made a pattern library for A List Apart which I open sourced, and a few weeks later, a glaring security vulnerability was found in it. My gift was so generous that it enabled unrestricted access to any file on any public-facing server that hosted it. With platforms like GitHub and npm, giving the gift of code is so easy it’s practically a no-brainer. This giant, open source yankee swap helps us do our jobs without starting from scratch with every project. But like any gift-giving, it’s also risky. Vulnerabilities and Open Source Open source code is not inherently more or less vulnerable than closed-source code. What makes it higher risk is that the same piece of code gets reused in lots of places, meaning a hacker can use the same exploit mechanism on the same vulnerable code in different apps. Graph showing the number of open source vulnerabilities published per year, from the State of Open Source Security 2017 In the first 24 ways article this year, Katie referenced a few different types of vulnerability: Cross-site Request Forgery (also known as CSRF) SQL Injection Cross-site Scripting (also known as XSS) There are many more types of vulnerability, and those that live under the same category share similarities. For example, my favourite – is it weird to have a favourite vulnerability? – is Cross Site Scripting (XSS), which allows for the injection of scripts into web pages. This is a really common vulnerability often unwittingly added by developers. OWASP (the Open Web Application Security Project) wrote a great article about how to prevent opening the door to XSS attacks – share it generously with your colleagues. Most vulnerabilities like this are not added intentionally – they’re doors left ajar… | 2018 | Anna Debenham | annadebenham | 2018-12-17T00:00:00+00:00 | https://24ways.org/2018/its-beginning-to-look-a-lot-like-xssmas/ | code |
| 292 | 292 | Watch Your Language! | I’m bilingual. My first language is French. I learned English in my early 20s. Learning a new language later in life meant that I was able to observe my thought processes changing over time. It made me realize that some concepts can’t be expressed in some languages, while other languages express these concepts with ease. It also helped me understand the way we label languages. English: business. French: romance. Here’s an example of how words, or the absence thereof, can affect the way we think: In French we love everything. There’s no straightforward way to say we like something, so we just end up loving everything. I love my sisters, I love broccoli, I love programming, I love my partner, I love doing laundry (this is a lie), I love my mom (this is not a lie). I love, I love, I love. It’s no wonder French is considered romantic. When I first learned English I used the word love rather than like because I hadn’t grasped the difference. Needless to say, I’ve scared away plenty of first dates! Learning another language made me realize the limitations of my native language and revealed concepts I didn’t know existed. Without the nuances a given language provides, we fail to express what we really think. The absence of words in our vocabulary gets in the way of effectively communicating and considering ideas. When I lived in Montréal, most people in my circle spoke both French and English. I could switch between them when I could more easily express an idea in one language or the other. I liked (or should I say loved?) those conversations. They were meaningful. They were efficient. I’m quadrilingual. I code in Ruby, HTML/CSS, JavaScript, Python. In the past couple of years I have been lucky enough to write code in these languages at a massive scale. In learning Ruby, much like learning English, I discovered the strengths and limitations of not only the languages I knew but the language I was learning. It taught me to choose the right tool for the job. When I started working at Shopify, making a change to a view inv… | 2016 | Annie-Claude Côté | annieclaudecote | 2016-12-10T00:00:00+00:00 | https://24ways.org/2016/watch-your-language/ | code |
| 209 | 209 | Feeding the Audio Graph | In 2004, I was given an iPod. I count this as one of the most intuitive pieces of technology I’ve ever owned. It wasn’t because of the the snazzy (colour!) menus or circular touchpad. I loved how smoothly it fitted into my life. I could plug in my headphones and listen to music while I was walking around town. Then when I got home, I could plug it into an amplifier and carry on listening there. There was no faff. It didn’t matter if I could find my favourite mix tape, or if my WiFi was flakey - it was all just there. Nowadays, when I’m trying to pair my phone with some Bluetooth speakers, or can’t find my USB-to-headphone jack, or even access any music because I don’t have cellular reception; I really miss this simplicity. The Web Audio API I think the Web Audio API feels kind of like my iPod did. It’s different from most browser APIs - rather than throwing around data, or updating DOM elements - you plug together a graph of audio nodes, which the browser uses to generate, process, and play sounds. The thing I like about it is that you can totally plug it into whatever you want, and it’ll mostly just work. So, let’s get started. First of all we want an audio source. <audio src="night-owl.mp3" controls /> (Song - Night Owl by Broke For Free) This totally works. However, it’s not using the Web Audio API, so we can’t access or modify the sound it makes. To hook this up to our audio graph, we can use an AudioSourceNode. This captures the sound from the element, and lets us connect to other nodes in a graph. const audioCtx = new AudioContext() const audio = document.querySelector('audio') const input = audioCtx.createAudioSourceNode(audio) input.connect(audioCtx.destination) Great. We’ve made something that looks and sounds exactly the same as it did before. Go us. Gain Let’s plug in a GainNode - this allows you to alter the amplitude (volume) of an an audio stream. We can hook this node up to an <input> element by setting the gain property of the node. (The syntax for this is kind of weird because it’s an Au… | 2017 | Ben Foxall | benfoxall | 2017-12-17T00:00:00+00:00 | https://24ways.org/2017/feeding-the-audio-graph/ | code |
| 109 | 109 | Geotag Everywhere with Fire Eagle | A note from the editors: Since this article was written Yahoo! has retired the Fire Eagle service. Location, they say, is everywhere. Everyone has one, all of the time. But on the web, it’s taken until this year to see the emergence of location in the applications we use and build. The possibilities are broad. Increasingly, mobile phones provide SDKs to approximate your location wherever you are, browser extensions such as Loki and Mozilla’s Geode provide browser-level APIs to establish your location from the proximity of wireless networks to your laptop. Yahoo’s Brickhouse group launched Fire Eagle, an ambitious location broker enabling people to take their location from any of these devices or sources, and provide it to a plethora of web services. It enables you to take the location information that only your iPhone knows about and use it anywhere on the web. That said, this is still a time of location as an emerging technology. Fire Eagle stores your location on the web (protected by application-specific access controls), but to try and give an idea of how useful and powerful your location can be — regardless of the services you use now — today’s 24ways is going to build a bookmarklet to call up your location on demand, in any web application. Location Support on the Web Over the past year, the number of applications implementing location features has increased dramatically. Plazes and Brightkite are both full featured social networks based around where you are, whilst Pownce rolled in Fire Eagle support to allow geotagging of all the content you post to their microblogging service. Dipity’s beautiful timeline shows for you moving from place to place and Six Apart’s activity stream for Movable Type started exposing your movements. The number of services that hook into Fire Eagle will increase as location awareness spreads through the developer community, but you can use your location on other sites indirectly too. Consider Flickr. … | 2008 | Ben Ward | benward | 2008-12-21T00:00:00+00:00 | https://24ways.org/2008/geotag-everywhere-with-fire-eagle/ | code |
| 83 | 83 | Cut Copy Paste | Long before I got into this design thing, I was heavily into making my own music inspired by the likes of Coldcut and Steinski. I would scour local second-hand record shops in search of obscure beats, loops and bits of dialogue in the hope of finding that killer sample I could then splice together with other things to make a huge hit that everyone would love. While it did eventually lead to a record contract and getting to release a few 12″ singles, ultimately I knew I’d have to look for something else to pay the bills. I may not make my own records any more, but the approach I took back then – finding (even stealing) things, cutting and pasting them into interesting combinations – is still at the centre of how I work, only these days it’s pretty much bits of code rather than bits of vinyl. Over the years I’ve stored these little bits of code (some I’ve found, some I’ve created myself) in Evernote, ready to be dialled up whenever I need them. So when Drew got in touch and asked if I’d like to do something for this year’s 24 ways I thought it might be kind of cool to share with you a few of these snippets that I find really useful. Think of these as a kind of coding mix tape; but remember – don’t just copy as is: play around, combine and remix them into other wonderful things. Some of this stuff is dirty; some of it will make hardcore programmers feel ill. For those people, remember this – while you were complaining about the syntax, I made something. Create unique colours Let’s start right away with something I stole. Well, actually it was given away at the time by Matt Biddulph who was then at Dopplr before Nokia destroyed it. Imagine you have thousands of words and you want to assign each one a unique colour. Well, Matt came up with a crazily simple but effective way to do that using an MD5 hash. Just encode said word using an MD5 hash, then take the first six characters of the string you get back to create a hexadecimal colour representation. I can’t guarantee that it will be a harmonious colour palet… | 2012 | Brendan Dawes | brendandawes | 2012-12-17T00:00:00+00:00 | https://24ways.org/2012/cut-copy-paste/ | code |
| 89 | 89 | Direction, Distance and Destinations | With all these new smartphones in the hands of lost and confused owners, we need a better way to represent distances and directions to destinations. The immediate examples that jump to mind are augmented reality apps which let you see another world through your phone’s camera. While this is interesting, there is a simpler way: letting people know how far away they are and if they are getting warmer or colder. In the app world, you can easily tap into the phone’s array of sensors such as the GPS and compass, but what people rarely know is that you can do the same with HTML. The native versus web app debate will never subside, but at least we can show you how to replicate some of the functionality progressively in HTML and JavaScript. In this tutorial, we’ll walk through how to create a simple webpage listing distances and directions of a few popular locations around the world. We’ll use JavaScript to access the device’s geolocation API and also attempt to access the compass to get a heading. Both of these APIs are documented, to be included in the W3C geolocation API specification, and can be used on both desktop and mobile devices today. To get started, we need a list of a few locations around the world. I have chosen the highest mountain peak on each continent so you can see a diverse set of distances and directions. Mountain °Latitude °Longitude Kilimanjaro -3.075833 37.353333 Vinson Massif -78.525483 -85.617147 Puncak Jaya -4.078889 137.158333 Everest 27.988056 86.925278 Elbrus 43.355 42.439167 Mount McKinley 63.0695 -151.0074 Aconcagua -32.653431 -70.011083 Source: Wikipedia We can put those into an HTML list to be styled and accessed by JavaScript to create some distance and directions calculations. The next thing we need to do is check to see if the browser and operating system have geolocation support. To do this we test to see if the function is available or not using a si… | 2012 | Brian Suda | briansuda | 2012-12-19T00:00:00+00:00 | https://24ways.org/2012/direction-distance-and-destinations/ | code |
| 100 | 100 | Moo'y Christmas | A note from the editors: Moo has changed their API since this article was written. As the web matures, it is less and less just about the virtual world. It is becoming entangled with our world and it is harder to tell what is virtual and what is real. There are several companies who are blurring this line and make the virtual just an extension of the physical. Moo is one such company. Moo offers simple print on demand services. You can print business cards, moo mini cards, stickers, postcards and more. They give you the ability to upload your images, customize them, then have them sent to your door. Many companies allow this sort of digital to physical interaction, but Moo has taken it one step further and has built an API. Printable stocking stuffers The Moo API consists of a simple XML file that is sent to their servers. It describes all the information needed to dynamically assemble and print your object. This is very helpful, not just for when you want to print your own stickers, but when you want to offer them to your customers, friends, organization or community with no hassle. Moo handles the check-out and shipping, all you need to do is what you do best, create! Now using an API sounds complicated, but it is actually very easy. I am going to walk you through the options so you can easily be printing in no time. Before you can begin sending data to the Moo API, you need to register and get an API key. This is important, because it allows Moo to track usage and to credit you. To register, visit http://www.moo.com/api/ and click “Request an API key”. In the following examples, I will use {YOUR API KEY HERE} as a place holder, replace that with your API key and everything will work fine. First thing you need to do is to create an XML file to describe the check-out basket. Open any text-editor and start with some XML basics. Don’t worry, this is pretty simple and Moo gives you a few tools to check your XML for errors before… | 2008 | Brian Suda | briansuda | 2008-12-19T00:00:00+00:00 | https://24ways.org/2008/mooy-christmas/ | code |
| 223 | 223 | Calculating Color Contrast | Some websites and services allow you to customize your profile by uploading pictures, changing the background color or other aspects of the design. As a customer, this personalization turns a web app into your little nest where you store your data. As a designer, letting your customers have free rein over the layout and design is a scary prospect. So what happens to all the stock text and images that are designed to work on nice white backgrounds? Even the Mac only lets you choose between two colors for the OS, blue or graphite! Opening up the ability to customize your site’s color scheme can be a recipe for disaster unless you are flexible and understand how to find maximum color contrasts. In this article I will walk you through two simple equations to determine if you should be using white or black text depending on the color of the background. The equations are both easy to implement and produce similar results. It isn’t a matter of which is better, but more the fact that you are using one at all! That way, even with the craziest of Geocities color schemes that your customers choose, at least your text will still be readable. Let’s have a look at a range of various possible colors. Maybe these are pre-made color schemes, corporate colors, or plucked from an image. Now that we have these potential background colors and their hex values, we need to find out whether the corresponding text should be in white or black, based on which has a higher contrast, therefore affording the best readability. This can be done at runtime with JavaScript or in the back-end before the HTML is served up. There are two functions I want to compare. The first, I call ’50%’. It takes the hex value and compares it to the value halfway between pure black and pure white. If the hex value is less than half, meaning it is on the darker side of the spectrum, it returns white as the text color. If the result is greater than half, it’s on the lighter side of the spectrum and returns black as the text value. In PHP: function getContra… | 2010 | Brian Suda | briansuda | 2010-12-24T00:00:00+00:00 | https://24ways.org/2010/calculating-color-contrast/ | code |
| 177 | 177 | HTML5: Tool of Satan, or Yule of Santa? | It would lead to unseasonal arguments to discuss the title of this piece here, and the arguments are as indigestible as the fourth turkey curry of the season, so we’ll restrict our article to the practical rather than the philosophical: what HTML5 can you reasonably expect to be able to use reliably cross-browser in the early months of 2010? The answer is that you can use more than you might think, due to the seasonal tinsel of feature-detection and using the sparkly pixie-dust of IE-only VML (but used in a way that won’t damage your Elf). Canvas canvas is a 2D drawing API that defines a blank area of the screen of arbitrary size, and allows you to draw on it using JavaScript. The pictures can be animated, such as in this canvas mashup of Wolfenstein 3D and Flickr. (The difference between canvas and SVG is that SVG uses vector graphics, so is infinitely scalable. It also keeps a DOM, whereas canvas is just pixels so you have to do all your own book-keeping yourself in JavaScript if you want to know where aliens are on screen, or do collision detection.) Previously, you needed to do this using Adobe Flash or Java applets, requiring plugins and potentially compromising keyboard accessibility. Canvas drawing is supported now in Opera, Safari, Chrome and Firefox. The reindeer in the corner is, of course, Internet Explorer, which currently has zero support for canvas (or SVG, come to that). Now, don’t pull a face like all you’ve found in your Yuletide stocking is a mouldy satsuma and a couple of nuts—that’s not the end of the story. Canvas was originally an Apple proprietary technology, and Internet Explorer had a similar one called Vector Markup Language which was submitted to the W3C for standardisation in 1998 but which, unlike canvas, was not blessed with retrospective standardisation. What you need, then, is some way for Internet Explorer to translate canvas to VML on-the-fly, while leaving the other, more standards-compliant browsers to use the HTML5. And such a way exists—it’s a JavaScript library called … | 2009 | Bruce Lawson | brucelawson | 2009-12-05T00:00:00+00:00 | https://24ways.org/2009/html5-tool-of-satan-or-yule-of-santa/ | code |
| 216 | 216 | Styling Components - Typed CSS With Stylable | There’s been a lot of debate recently about how best to style components for web apps so that styles don’t accidentally ‘leak’ out of the component they’re meant for, or clash with other styles on the page. Elaborate CSS conventions have sprung up, such as OOCSS, SMACSS, BEM, ITCSS, and ECSS. These work well, but they are methodologies, and require everyone in the team to know them and follow them, which can be a difficult undertaking across large or distributed teams. Others just give up on CSS and put all their styles in JavaScript. Now, I’m not bashing JS, especially so close to its 22nd birthday, but CSS-in-JS has problems of its own. Browsers have 20 years experience in optimising their CSS engines, so JavaScript won’t be as fast as using real CSS, and in any case, this requires waiting for JS to download, parse, execute then render the styles. There’s another problem with CSS-in-JS, too. Since Responsive Web Design hit the streets, most designers no longer make comps in Photoshop or its equivalents; instead, they write CSS. Why hire an expensive design professional and require them to learn a new way of doing their job? A recent thread on Twitter asked “What’s your biggest gripe with CSS-in-JS?”, and the replies were illuminating: “Always having to remember to camelCase properties then spending 10min pulling hair out when you do forget”, “the cryptic domain-specific languages that each of the frameworks do just ever so slightly differently”, “When I test look and feel in browser, then I copy paste from inspector, only to have to re-write it as a JSON object”, “Lack of linting, autocomplete, and css plug-ins for colors/ incrementing/ etc”. If you’re a developer, and you’re still unconvinced, I challenge you to let designers change the font in your IDE to Zapf Chancery and choose a new colour scheme, simply because they like it better. Does that sound like fun? Will that boost your productivity? Thought not. Some chums at Wix Engineering and I wanted to see if we could square this circle. Wix-hosted sites h… | 2017 | Bruce Lawson | brucelawson | 2017-12-09T00:00:00+00:00 | https://24ways.org/2017/styling-components-typed-css-with-stylable/ | code |
| 8 | 8 | Coding Towards Accessibility | “Can we make it AAA-compliant?” – does this question strike fear into your heart? Maybe for no other reason than because you will soon have to wade through the impenetrable WCAG documentation once again, to find out exactly what AAA-compliant means? I’m not here to talk about that. The Web Content Accessibility Guidelines are a comprehensive and peer-reviewed resource which we’re lucky to have at our fingertips. But they are also a pig to read, and they may have contributed to the sense of mystery and dread with which some developers associate the word accessibility. This Christmas, I want to share with you some thoughts and some practical tips for building accessible interfaces which you can start using today, without having to do a ton of reading or changing your tools and workflow. But first, let’s clear up a couple of misconceptions. Dreary, flat experiences I recently built a front-end framework for the Post Office. This was a great gig for a developer, but when I found out about my client’s stringent accessibility requirements I was concerned that I’d have to scale back what was quite a complex set of visual designs. Sites like Jakob Neilsen’s old workhorse useit.com and even the pioneering GOV.UK may have to shoulder some of the blame for this. They put a premium on usability and accessibility over visual flourish. (Although, in fairness to Mr Neilsen, his new site nngroup.com is really quite a snazzy affair, comparatively.) Of course, there are other reasons for these sites’ aesthetics — and it’s not because of the limitations of the form. You can make an accessible site look as glossy or as plain as you want it to look. It’s always our own ingenuity and attention to detail that are going to be the limiting factors. Synecdoche We must always guard against the tendency to assume that catering to screen readers means we have the whole accessibility ballgame covered. There’s so much more to accessibility than assistive technology, as you know. And within the field of assistive technology there ar… | 2013 | Charlie Perrins | charlieperrins | 2013-12-03T00:00:00+00:00 | https://24ways.org/2013/coding-towards-accessibility/ | code |
| 204 | 204 | Cascading Web Design with Feature Queries | Feature queries, also known as the @supports rule, were introduced as an extension to the CSS2 as part of the CSS Conditional Rules Module Level 3, which was first published as a working draft in 2011. It is a conditional group rule that tests if the browser’s user agent supports CSS property:value pairs, and arbitrary conjunctions (and), disjunctions (or), and negations (not) of them. The motivation behind this feature was to allow authors to write styles using new features when they were supported but degrade gracefully in browsers where they are not. Even though the nature of CSS already allows for graceful degradation, for example, by ignoring unsupported properties or values without disrupting other styles in the stylesheet, sometimes we need a bit more than that. CSS is ultimately a holistic technology, in that, even though you can use properties in isolation, the full power of CSS shines through when used in combination. This is especially evident when it comes to building web layouts. Having native feature detection in CSS makes it much more convenient to build with cutting-edge CSS for the latest browsers while supporting older browsers at the same time. Browser support Opera first implemented feature queries in November 2012, both Chrome and Firefox had it since May 2013. There have been several articles about feature queries written over the years, however, it seems that awareness of its broad support isn’t that well-known. Much of the earlier coverage on feature queries was not written in English, and perhaps that was a limiting factor. @supports ― CSSのFeature Queries by Masataka Yakura, August 8 2012 Native CSS Feature Detection via the @supports Rule by Chris Mills, December 21 2012 CSS @supports by David Walsh, April 3 2013 Responsive typography with CSS Feature Queries by Aral Balkan, April 9 2013 How to use the @supports rule in your CSS by Lea Verou, January 31 2014 CSS Feature Queries by Amit Tal, June 2 2014 Coming Soon: CSS Feature Queries by Adobe Web Platform Team, August 21 2014 CSS featu… | 2017 | Chen Hui Jing | chenhuijing | 2017-12-01T00:00:00+00:00 | https://24ways.org/2017/cascading-web-design/ | code |
| 18 | 18 | Grunt for People Who Think Things Like Grunt are Weird and Hard | Front-end developers are often told to do certain things: Work in as small chunks of CSS and JavaScript as makes sense to you, then concatenate them together for the production website. Compress your CSS and minify your JavaScript to make their file sizes as small as possible for your production website. Optimize your images to reduce their file size without affecting quality. Use Sass for CSS authoring because of all the useful abstraction it allows. That’s not a comprehensive list of course, but those are the kind of things we need to do. You might call them tasks. I bet you’ve heard of Grunt. Well, Grunt is a task runner. Grunt can do all of those things for you. Once you’ve got it set up, which isn’t particularly difficult, those things can happen automatically without you having to think about them again. But let’s face it: Grunt is one of those fancy newfangled things that all the cool kids seem to be using but at first glance feels strange and intimidating. I hear you. This article is for you. Let’s nip some misconceptions in the bud right away Perhaps you’ve heard of Grunt, but haven’t done anything with it. I’m sure that applies to many of you. Maybe one of the following hang-ups applies to you. I don’t need the things Grunt does You probably do, actually. Check out that list up top. Those things aren’t nice-to-haves. They are pretty vital parts of website development these days. If you already do all of them, that’s awesome. Perhaps you use a variety of different tools to accomplish them. Grunt can help bring them under one roof, so to speak. If you don’t already do all of them, you probably should and Grunt can help. Then, once you are doing those, you can keep using Grunt to do more for you, which will basically make you better at doing your job. Grunt runs on Node.js — I don’t know Node You don’t have to know Node. Just like you don’t have to know Ruby to use Sass. Or PHP to use WordPress. Or C++ to use Microsoft Word. I have other ways to do the things Grunt could do for me Are the… | 2013 | Chris Coyier | chriscoyier | 2013-12-11T00:00:00+00:00 | https://24ways.org/2013/grunt-is-not-weird-and-hard/ | code |
| 104 | 104 | Sitewide Search On A Shoe String | One of the questions I got a lot when I was building web sites for smaller businesses was if I could create a search engine for their site. Visitors should be able to search only this site and find things without the maintainer having to put “related articles” or “featured content” links on every page by hand. Back when this was all fields this wasn’t easy as you either had to write your own scraping tool, use ht://dig or a paid service from providers like Yahoo, Altavista or later on Google. In the former case you had to swallow the bitter pill of computing and indexing all your content and storing it in a database for quick access and in the latter it hurt your wallet. Times have moved on and nowadays you can have the same functionality for free using Yahoo’s “Build your own search service” – BOSS. The cool thing about BOSS is that it allows for a massive amount of hits a day and you can mash up the returned data in any format you want. Another good feature of it is that it comes with JSON-P as an output format which makes it possible to use it without any server-side component! Starting with a working HTML form In order to add a search to your site, you start with a simple HTML form which you can use without JavaScript. Most search engines will allow you to filter results by domain. In this case we will search “bbc.co.uk”. If you use Yahoo as your standard search, this could be: <form id="customsearch" action="http://search.yahoo.com/search"> <div> <label for="p">Search this site:</label> <input type="text" name="p" id="term"> <input type="hidden" name="vs" id="site" value="bbc.co.uk"> <input type="submit" value="go"> </div> </form> The Google equivalent is: <form id="customsearch" action="http://www.google.co.uk/search"> <div> <label for="p">Search this site:</label> <input type="text" name="as_q" id="term"> <input type="hidden" name="as_sitesearch" id="site" value="bbc.co.uk"> <input type="submit" value="go"> </div> </form> In any case make sure to use the ID term for the searc… | 2008 | Christian Heilmann | chrisheilmann | 2008-12-04T00:00:00+00:00 | https://24ways.org/2008/sitewide-search-on-a-shoestring/ | code |
| 139 | 139 | Flickr Photos On Demand with getFlickr | In case you don’t know it yet, Flickr is great. It is a lot of fun to upload, tag and caption photos and it is really handy to get a vast network of contacts through it. Using Flickr photos outside of it is a bit of a problem though. There is a Flickr API, and you can get almost every page as an RSS feed, but in general it is a bit tricky to use Flickr photos inside your blog posts or web sites. You might not want to get into the whole API game or use a server side proxy script as you cannot retrieve RSS with Ajax because of the cross-domain security settings. However, Flickr also provides an undocumented JSON output, that can be used to hack your own solutions in JavaScript without having to use a server side script. If you enter the URL http://flickr.com/photos/tags/panda you get to the flickr page with photos tagged “panda”. If you enter the URL http://api.flickr.com/services/feeds/photos_public.gne?tags=panda&format=rss_200 you get the same page as an RSS feed. If you enter the URL http://api.flickr.com/services/feeds/photos_public.gne?tags=panda&format=json you get a JavaScript function called jsonFlickrFeed with a parameter that contains the same data in JSON format You can use this to easily hack together your own output by just providing a function with the same name. I wanted to make it easier for you, which is why I created the helper getFlickr for you to download and use. getFlickr for Non-Scripters Simply include the javascript file getflickr.js and the style getflickr.css in the head of your document: <script type="text/javascript" src="getflickr.js"></script> <link rel="stylesheet" href="getflickr.css" type="text/css"> Once this is done you can add links to Flickr pages anywhere in your document, and when you give them the CSS class getflickrphotos they get turned into gallery links. When a visitor clicks these links they turn into loading messages and show a “popup” gallery with the connected photos once they were loaded. As the JSON returned is very small it won’t take long. You can… | 2006 | Christian Heilmann | chrisheilmann | 2006-12-03T00:00:00+00:00 | https://24ways.org/2006/flickr-photos-on-demand/ | code |
| 161 | 161 | Keeping JavaScript Dependencies At Bay | As we are writing more and more complex JavaScript applications we run into issues that have hitherto (god I love that word) not been an issue. The first decision we have to make is what to do when planning our app: one big massive JS file or a lot of smaller, specialised files separated by task. Personally, I tend to favour the latter, mainly because it allows you to work on components in parallel with other developers without lots of clashes in your version control. It also means that your application will be more lightweight as you only include components on demand. Starting with a global object This is why it is a good plan to start your app with one single object that also becomes the namespace for the whole application, say for example myAwesomeApp: var myAwesomeApp = {}; You can nest any necessary components into this one and also make sure that you check for dependencies like DOM support right up front. Adding the components The other thing to add to this main object is a components object, which defines all the components that are there and their file names. var myAwesomeApp = { components :{ formcheck:{ url:'formcheck.js', loaded:false }, dynamicnav:{ url:'dynamicnav.js', loaded:false }, gallery:{ url:'gallery.js', loaded:false }, lightbox:{ url:'lightbox.js', loaded:false } } }; Technically you can also omit the loaded properties, but it is cleaner this way. The next thing to add is an addComponent function that can load your components on demand by adding new SCRIPT elements to the head of the documents when they are needed. var myAwesomeApp = { components :{ formcheck:{ url:'formcheck.js', loaded:false }, dynamicnav:{ url:'dynamicnav.js', loaded:false }, gallery:{ url:'gallery.js', loaded:false }, lightbox:{ url:'lightbox.js', loaded:false } }, addComponent:function(component){ var c = this.components[component]; if(c && c.loaded === false){ var s = document.createElement('script'); s.setAttribut… | 2007 | Christian Heilmann | chrisheilmann | 2007-12-18T00:00:00+00:00 | https://24ways.org/2007/keeping-javascript-dependencies-at-bay/ | code |
| 186 | 186 | The Web Is Your CMS | It is amazing what you can do these days with the services offered on the web. Flickr stores terabytes of photos for us and converts them automatically to all kind of sizes, finds people in them and even allows us to edit them online. YouTube does almost the same complete job with videos, LinkedIn allows us to maintain our CV, Delicious our bookmarks and so on. We don’t have to do these tasks ourselves any more, as all of these systems also come with ways to use the data in the form of Application Programming Interfaces, or APIs for short. APIs give us raw data when we send requests telling the system what we want to get back. The problem is that every API has a different idea of what is a simple way of accessing this data and in which format to give it back. Making it easier to access APIs What we need is a way to abstract the pains of different data formats and authentication formats away from the developer — and this is the purpose of the Yahoo Query Language, or YQL for short. Libraries like jQuery and YUI make it easy and reliable to use JavaScript in browsers (yes, even IE6) and YQL allows us to access web services and even the data embedded in web documents in a simple fashion – SQL style. Select * from the web and filter it the way I want YQL is a web service that takes a few inputs itself: A query that tells it what to get, update or access An output format – XML, JSON, JSON-P or JSON-P-X A callback function (if you defined JSON-P or JSON-P-X) You can try it out yourself – check out this link to get back Flickr photos for the search term ‘santa’*%20from%20flickr.photos.search%20where%20text%3D%22santa%22&format=xml in XML format. The YQL query for this is select * from flickr.photos.search where text="santa" The easiest way to take your first steps with YQL is to look at the console. There you get sample queries, access to all the data sources available to you and you can easily put together complex queries. In this article, however, let’s use PHP to put together a web page that pulls i… | 2009 | Christian Heilmann | chrisheilmann | 2009-12-17T00:00:00+00:00 | https://24ways.org/2009/the-web-is-your-cms/ | code |
| 233 | 233 | Wrapping Things Nicely with HTML5 Local Storage | HTML5 is here to turn the web from a web of hacks into a web of applications – and we are well on the way to this goal. The coming year will be totally and utterly awesome if you are excited about web technologies. This year the HTML5 revolution started and there is no stopping it. For the first time all the browser vendors are rallying together to make a technology work. The new browser war is fought over implementation of the HTML5 standard and not over random additions. We live in exciting times. Starting with a bang As with every revolution there is a lot of noise with bangs and explosions, and that’s the stage we’re at right now. HTML5 showcases are often CSS3 showcases, web font playgrounds, or video and canvas examples. This is great, as it gets people excited and it gives the media something to show. There is much more to HTML5, though. Let’s take a look at one of the less sexy, but amazingly useful features of HTML5 (it was in the HTML5 specs, but grew at such an alarming rate that it warranted its own spec): storing information on the client-side. Why store data on the client-side? Storing information in people’s browsers affords us a few options that every application should have: You can retain the state of an application – when the user comes back after closing the browser, everything will be as she left it. That’s how ‘real’ applications work and this is how the web ones should, too. You can cache data – if something doesn’t change then there is no point in loading it over the Internet if local access is so much faster You can store user preferences – without needing to keep that data on your server at all. In the past, storing local data wasn’t much fun. The pain of hacky browser solutions In the past, all we had were cookies. I don’t mean the yummy things you get with your coffee, endorsed by the blue, furry junkie in Sesame Street, but the other, digital ones. Cookies suck – it isn’t fun to have an unencrypted HTTP overhead on every server request for storing four kilobytes of data… | 2010 | Christian Heilmann | chrisheilmann | 2010-12-06T00:00:00+00:00 | https://24ways.org/2010/html5-local-storage/ | code |
| 235 | 235 | Real Animation Using JavaScript, CSS3, and HTML5 Video | When I was in school to be a 3-D animator, I read a book called Timing for Animation. Though only 152 pages long, it’s essentially the bible for anyone looking to be a great animator. In fact, Pixar chief creative officer John Lasseter used the first edition as a reference when he was an animator at Walt Disney Studios in the early 1980s. In the book, authors John Halas and Harold Whitaker advise: Timing is the part of animation which gives meaning to movement. Movement can easily be achieved by drawing the same thing in two different positions and inserting a number of other drawings between the two. The result on the screen will be movement; but it will not be animation. But that’s exactly what we’re doing with CSS3 and JavaScript: we’re moving elements, not animating them. We’re constantly specifying beginning and end states and allowing the technology to interpolate between the two. And yet, it’s the nuances within those middle frames that create the sense of life we’re looking for. As bandwidth increases and browser rendering grows more consistent, we can create interactions in different ways than we’ve been able to before. We’re encountering motion more and more on sites we’d generally label ‘static.’ However, this motion is mostly just movement, not animation. It’s the manipulation of an element’s properties, most commonly width, height, x- and y-coordinates, and opacity. So how do we create real animation? The metaphor In my experience, animation is most believable when it simulates, exaggerates, or defies the real world. A bowling ball falls differently than a racquetball. They each have different weights and sizes, which affect the way they land, bounce, and impact other objects. This is a major reason that JavaScript animation frequently feels mechanical; it doesn’t complete a metaphor. Expanding and collapsing a <div> feels very different than a opening a door or unfolding a piece of paper, but it often shouldn’t. The interaction itself should tie directly to the art direction of a page. P… | 2010 | Dan Mall | danmall | 2010-12-15T00:00:00+00:00 | https://24ways.org/2010/real-animation-using-javascript-css3-and-html5-video/ | code |
| 98 | 98 | Absolute Columns | CSS layouts have come quite a long way since the dark ages of web publishing, with all sorts of creative applications of floats, negative margins, and even background images employed in order to give us that most basic building block, the column. As the title implies, we are indeed going to be discussing columns today—more to the point, a handy little application of absolute positioning that may be exactly what you’ve been looking for… Care for a nightcap? If you’ve been developing for the web for long enough, you may be familiar with this little children’s fable, passed down from wizened Shaolin monks sitting atop the great Mt. Geocities: “Once upon a time, multiple columns of the same height could be easily created using TABLES.” Now, though we’re all comfortably seated on the standards train (and let’s be honest: even if you like to think you’ve fallen off, if you’ve given up using tables for layout, rest assured your sleeper car is still reserved), this particular—and as page layout goes, quite basic—trick is still a thorn in our CSSides compared to the ease of achieving the same effect using said Tables of Evil™. See, the orange juice masks the flavor… Creative solutions such as Dan Cederholm’s Faux Columns do a good job of making it appear as though adjacent columns maintain equal height as content expands, using a background image to fill the space that the columns cannot. Now, the Holy Grail of CSS columns behaving exactly how they would as table cells—or more to the point, as columns—still eludes us (cough CSS3 Multi-column layout module cough), but sometimes you just need, for example, a secondary column (say, a sidebar) to match the height of a primary column, without involving the creation of images. This is where a little absolute positioning can save you time, while possibly giving your layout a little more flexibility. Shaken, not stirred You’re probably familiar by now with the concept of Making the Absolute, Relative as set forth long ago by Doug Bowman, but let’s quickly review just in c… | 2008 | Dan Rubin | danrubin | 2008-12-22T00:00:00+00:00 | https://24ways.org/2008/absolute-columns/ | code |
| 253 | 253 | Clip Paths Know No Bounds | CSS Shapes are getting a lot of attention as browser support has increased for properties like shape-outside and clip-path. There are a few ways that we can use CSS Shapes, in particular with the clip-path property, that are not necessarily evident at first glance. The basics of a clip path Before we dig into specific techniques to expand on clip paths, we should first take a look at a basic shape and clip-path. Clip paths can apply a CSS Shape such as a circle(), ellipse(), inset(), or the flexible polygon() to any element. Everywhere in the element that is not within the bounds of our shape will be visually removed. Using the polygon shape function, for example, we can create triangles, stars, or other straight-edged shapes as on Bennett Feely’s Clippy. While fixed units like pixels can be used when defining vertices/points (where the sides meet), percentages will give more flexibility to adapt to the element’s dimensions. See the Pen Clip Path Box by Dan Wilson (@danwilson) on CodePen. So for an octagon, we can set eight x, y pairs of percentages to define those points. In this case we start 30% into the width of the box for the first x and at the top of the box for the y and go clockwise. The visible area becomes the interior of the shape made by connecting these points with straight lines. clip-path: polygon( 30% 0%, 70% 0%, 100% 30%, 100% 70%, 70% 100%, 30% 100%, 0% 70%, 0% 30% ); A shape with less vertices than the eye can see It’s reasonable to look at the polygon() function and assume that we need to have one pair of x, y coordinates for every point in our shape. However, we gain some flexibility by thinking outside the box — or more specifically when we think outside the range of 0% - 100%. Our element’s box model will be the ultimate boundary for a clip-path, but we can still define points that exist beyond that natural box for an element. See the Pen CSS Shapes Know No Bounds by Dan Wilson (@danwilson) on CodePen. By going beyond the 0% - 100% range we can turn a polygon with three p… | 2018 | Dan Wilson | danwilson | 2018-12-20T00:00:00+00:00 | https://24ways.org/2018/clip-paths-know-no-bounds/ | code |
| 234 | 234 | An Introduction to CSS 3-D Transforms | Ladies and gentlemen, it is the second decade of the third millennium and we are still kicking around the same 2-D interface we got three decades ago. Sure, Apple debuted a few apps for OSX 10.7 that have a couple more 3-D flourishes, and Microsoft has had that Flip 3D for a while. But c’mon – 2011 is right around the corner. That’s Twenty Eleven, folks. Where is our 3-D virtual reality? By now, we should be zipping around the Metaverse on super-sonic motorbikes. Granted, the capability of rendering complex 3-D environments has been present for years. On the web, there are already several solutions: Flash; three.js in <canvas>; and, eventually, WebGL. Finally, we meagre front-end developers have our own three-dimensional jewel: CSS 3-D transforms! Rationale Like a beautiful jewel, 3-D transforms can be dazzling, a true spectacle to behold. But before we start tacking 3-D diamonds and rubies to our compositions like Liberace‘s tailor, we owe it to our users to ask how they can benefit from this awesome feature. An entire application should not take advantage of 3-D transforms. CSS was built to style documents, not generate explorable environments. I fail to find a benefit to completing a web form that can be accessed by swivelling my viewport to the Sign-Up Room (although there have been proposals to make the web just that). Nevertheless, there are plenty of opportunities to use 3-D transforms in between interactions with the interface, via transitions. Take, for instance, the Weather App on the iPhone. The application uses two views: a details view; and an options view. Switching between these two views is done with a 3-D flip transition. This informs the user that the interface has two – and only two – views, as they can exist only on either side of the same plane. Flipping from details view to options view via a 3-D transition Also, consider slide shows. When you’re looking at the last slide, what cues tip you off that advancing will restart the cycle at the first slide? A better paradigm might be achi… | 2010 | David DeSandro | daviddesandro | 2010-12-14T00:00:00+00:00 | https://24ways.org/2010/intro-to-css-3d-transforms/ | code |
| 171 | 171 | Rock Solid HTML Emails | At some stage in your career, it’s likely you’ll be asked by a client to design a HTML email. Before you rush to explain that all the cool kids are using social media, keep in mind that when done correctly, email is still one of the best ways to promote you and your clients online. In fact, a recent survey showed that every dollar spent on email marketing this year generated more than $40 in return. That’s more than any other marketing channel, including the cool ones. There are a whole host of ingredients that contribute to a good email marketing campaign. Permission, relevance, timeliness and engaging content are all important. Even so, the biggest challenge for designers still remains building an email that renders well across all the popular email clients. Same same, but different Before getting into the details, there are some uncomfortable facts that those new to HTML email should be aware of. Building an email is not like building for the web. While web browsers continue their onward march towards standards, many email clients have stubbornly stayed put. Some have even gone backwards. In 2007, Microsoft switched the Outlook rendering engine from Internet Explorer to Word. Yes, as in the word processor. Add to this the quirks of the major web-based email clients like Gmail and Hotmail, sprinkle in a little Lotus Notes and you’ll soon realize how different the email game is. While it’s not without its challenges, rest assured it can be done. In my experience the key is to focus on three things. First, you should keep it simple. The more complex your email design, the more likely is it to choke on one of the popular clients with poor standards support. Second, you need to take your coding skills back a good decade. That often means nesting tables, bringing CSS inline and following the coding guidelines I’ll outline below. Finally, you need to test your designs regularly. Just because a template looks nice in Hotmail now, doesn’t mean it will next week. Setting your lowest common denominator To maintain … | 2009 | David Greiner | davidgreiner | 2009-12-13T00:00:00+00:00 | https://24ways.org/2009/rock-solid-html-emails/ | code |
| 257 | 257 | The (Switch)-Case for State Machines in User Interfaces | You’re tasked with creating a login form. Email, password, submit button, done. “This will be easy,” you think to yourself. Login form by Selecto You’ve made similar forms many times in the past; it’s essentially muscle memory at this point. You’re working closely with a designer, who gives you a beautiful, detailed mockup of a login form. Sure, you’ll have to translate the pixels to meaningful, responsive CSS values, but that’s the least of your problems. As you’re writing up the HTML structure and CSS layout and styles for this form, you realize that you don’t know what the successful “logged in” page looks like. You remind the designer, who readily gives it to you. But then you start thinking more and more about how the login form is supposed to work. What if login fails? Where do those errors show up? Should we show errors differently if the user forgot to enter their email, or password, or both? Or should the submit button be disabled? Should we validate the email field? When should we show validation errors – as they’re typing their email, or when they move to the password field, or when they click submit? (Note: many, many login forms are guilty of this.) When should the errors disappear? What do we show during the login process? Some loading spinner? What if loading takes too long, or a server error occurs? Many more questions come up, and you (and your designer) are understandably frustrated. The lack of upfront specification opens the door to scope creep, which readily finds itself at home in all the unexplored edge cases. Modeling Behavior Describing all the possible user flows and business logic of an application can become tricky. Ironically, user stories might not tell the whole story – they often leave out potential edge-cases or small yet important bits of information. However, one important (and very old) mathematical model of computation can be used for describing the behavior and all possible states of a user interface: the finite state machine. The general idea, as it applies to user interfa… | 2018 | David Khourshid | davidkhourshid | 2018-12-12T00:00:00+00:00 | https://24ways.org/2018/state-machines-in-user-interfaces/ | code |
| 195 | 195 | Levelling Up for Junior Developers | If you are a junior developer starting out in the web industry, things can often seem a little daunting. There are so many things to learn, and as soon as you’ve learnt one framework or tool, there seems to be something new out there. I am lucky enough to lead a team of developers building applications for the web. During a recent One to One meeting with one of our junior developers, he asked me about a learning path and the basic fundamentals that every developer should know. After a bit of digging around, I managed to come up with a (not so exhaustive) list of principles that was shared with him. In this article, I will share the list with you, and hopefully help you level up from junior developer and become a better developer all round. This list doesn’t focus on an particular programming language, but rather coding concepts as a whole. The idea behind this list is that whether you are a front-end developer, back-end developer, full stack developer or just a curious one, these principles apply to everyone that writes code. I have tried to be technology agnostic, so that you can use these tips to guide you, whatever your tech stack might be. Without any further ado and in no particular order, let’s get started. Refactoring code like a boss The Boy Scouts have a rule that goes “always leave the campground cleaner than you found it.” This rule can be applied to code too and ensures that you leave code cleaner than you found it. As a junior developer, it’s almost certain that you will either create or come across older code that could be improved. The resources below are a guide that will help point you in the right direction. My favourite book on this subject has to be Clean Code by Robert C. Martin. It’s a must read for anyone writing code as it helps you identify bad code and shows you techniques that you can use to improve existing code. If you find that in your day to day work you deal with a lot of legacy code, Improving Existing Technology through Refactoring is another useful read. Design Patterns are a… | 2017 | Dean Hume | deanhume | 2017-12-05T00:00:00+00:00 | https://24ways.org/2017/levelling-up-for-junior-developers/ | code |
| 309 | 309 | HTTP/2 Server Push and Service Workers: The Perfect Partnership | Being a web developer today is exciting! The web has come a long way since its early days and there are so many great technologies that enable us to build faster, better experiences for our users. One of these technologies is HTTP/2 which has a killer feature known as HTTP/2 Server Push. During this year’s Chrome Developer Summit, I watched a really informative talk by Sam Saccone, a Software Engineer on the Google Chrome team. He gave a talk entitled Planning for Performance, and one of the topics that he covered immediately piqued my interest; the idea that HTTP/2 Server Push and Service Workers were the perfect web performance combination. If you’ve never heard of HTTP/2 Server Push before, fear not - it’s not as scary as it sounds. HTTP/2 Server Push simply allows the server to send data to the browser without having to wait for the browser to explicitly request it first. In this article, I am going to run through the basics of HTTP/2 Server Push and show you how, when combined with Service Workers, you can deliver the ultimate in web performance to your users. What is HTTP/2 Server Push? When a user navigates to a URL, a browser will make an HTTP request for the underlying web page. The browser will then scan the contents of the HTML document for any assets that it may need to retrieve such as CSS, JavaScript or images. Once it finds any assets that it needs, it will then make multiple HTTP requests for each resource that it needs and begin downloading one by one. While this approach works well, the problem is that each HTTP request means more round trips to the server before any data arrives at the browser. These extra round trips take time and can make your web pages load slower. Before we go any further, let’s see what this might look like when your browser makes a request for a web page. If you were to view this in the developer tools of your browser, it might look a little something like this: As you can see from the image above, once the HTML file has been downloaded and parsed, the browser then mak… | 2016 | Dean Hume | deanhume | 2016-12-15T00:00:00+00:00 | https://24ways.org/2016/http2-server-push-and-service-workers/ | code |
| 135 | 135 | A Scripting Carol | We all know the stories of the Ghost of Scripting Past – a time when the web was young and littered with nefarious scripting, designed to bestow ultimate control upon the developer, to pollute markup with event handler after event handler, and to entrench advertising in the minds of all that gazed upon her. And so it came to be that JavaScript became a dirty word, thrown out of solutions by many a Scrooge without regard to the enhancements that JavaScript could bring to any web page. JavaScript, as it was, was dead as a door-nail. With the arrival of our core philosophy that all standardistas hold to be true: “separate your concerns – content, presentation and behaviour,” we are in a new era of responsible development the Web Standards Way™. Or are we? Have we learned from the Ghosts of Scripting Past? Or are we now faced with new problems that come with new ways of implementing our solutions? The Ghost of Scripting Past If the Ghost of Scripting Past were with us it would probably say: You must remember your roots and where you came from, and realize the misguided nature of your early attempts for control. That person you see down there, is real and they are the reason you exist in the first place… without them, you are nothing. In many ways we’ve moved beyond the era of control and we do take into account the user, or at least much more so than we used to. Sadly – there is one advantage that old school inline event handlers had where we assigned and reassigned CSS style property values on the fly – we knew that if JavaScript wasn’t supported, the styles wouldn’t be added because we ended up doing them at the same time. If anything, we need to have learned from the past that just because it works for us doesn’t mean it is going to work for anyone else – we need to test more scenarios than ever to observe the multitude of browsing arrangements we’ll observe: CSS on with JavaScript off, CSS off/overridden with JavaScript on, both on, both off/not supported. It is a situation that is ripe for conflict. … | 2006 | Derek Featherstone | derekfeatherstone | 2006-12-21T00:00:00+00:00 | https://24ways.org/2006/a-scripting-carol/ | code |
| 335 | 335 | Naughty or Nice? CSS Background Images | Web Standards based development involves many things – using semantically sound HTML to provide structure to our documents or web applications, using CSS for presentation and layout, using JavaScript responsibly, and of course, ensuring that all that we do is accessible and interoperable to as many people and user agents as we can. This we understand to be good. And it is good. Except when we don’t clearly think through the full implications of using those techniques. Which often happens when time is short and we need to get things done. Here are some naughty examples of CSS background images with their nicer, more accessible counterparts. Transaction related messages I’m as guilty of this as others (or, perhaps, I’m the only one that has done this, in which case this can serve as my holiday season confessional) We use lovely little icons to show status messages for a transaction to indicate if the action was successful, or was there a warning or error? For example: “Your postal/zip code was not in the correct format.” Notice that we place a nice little icon there, and use background colours and borders to convey a specific message: there was a problem that needs to be fixed. Notice that all of this visual information is now contained in the CSS rules for that div: <div class="error"> <p>Your postal/zip code was not in the correct format.</p> </div> div.error { background: #ffcccc url(../images/error_small.png) no-repeat 5px 4px; color: #900; border-top: 1px solid #c00; border-bottom: 1px solid #c00; padding: 0.25em 0.5em 0.25em 2.5em; font-weight: bold; } Using this approach also makes it very easy to create a div.success and div.warning CSS rules meaning we have less to change in our HTML. Nice, right? No. Naughty. Visual design communicates The CSS is being used to convey very specific information. The choice of icon, the choice of background colour and borders tell us visually that there is something wrong. With the icon as a background image – there… | 2005 | Derek Featherstone | derekfeatherstone | 2005-12-20T00:00:00+00:00 | https://24ways.org/2005/naughty-or-nice-css-background-images/ | code |
| 16 | 16 | URL Rewriting for the Fearful | I think it was Marilyn Monroe who said, “If you can’t handle me at my worst, please just fix these rewrite rules, I’m getting an internal server error.” Even the blonde bombshell hated configuring URL rewrites on her website, and I think most of us know where she was coming from. The majority of website projects I work on require some amount of URL rewriting, and I find it mildly enjoyable — I quite like a good rewrite rule. I suspect you may not share my glee, so in this article we’re going to go back to basics to try to make the whole rigmarole more understandable. When we think about URL rewriting, usually that means adding some rules to an .htaccess file for an Apache web server. As that’s the most common case, that’s what I’ll be sticking to here. If you work with a different server, there’s often documentation specifically for translating from Apache’s mod_rewrite rules. I even found an automatic converter for nginx. This isn’t going to be a comprehensive guide to every URL rewriting problem you might ever have. That would take us until Christmas. If you consider yourself a trial-and-error dabbler in the HTTP 500-infested waters of URL rewriting, then hopefully this will provide a little bit more of a basis to help you figure out what you’re doing. If you’ve ever found yourself staring at the white screen of death after screwing up your .htaccess file, don’t worry. As Michael Jackson once insipidly whined, you are not alone. The basics Rewrite rules form part of the Apache web server’s configuration for a website, and can be placed in a number of different locations as part of your virtual host configuration. By far the simplest and most portable option is to use an .htaccess file in your website root. Provided your server has mod_rewrite available, all you need to do to kick things off in your .htaccess file is: RewriteEngine on The general formula for a rewrite rule is: RewriteRule URL/to/match URL/to/use/if/it/matches [options] When we talk about URL rewriting, we’re normally talking about one o… | 2013 | Drew McLellan | drewmclellan | 2013-12-01T00:00:00+00:00 | https://24ways.org/2013/url-rewriting-for-the-fearful/ | code |
| 80 | 80 | HTML5 Video Bumpers | Video is a bigger part of the web experience than ever before. With native browser support for HTML5 video elements freeing us from the tyranny of plugins, and the availability of faster internet connections to the workplace, home and mobile networks, it’s now pretty straightforward to publish video in a way that can be consumed in all sorts of ways on all sorts of different web devices. I recently worked on a project where the client had shot some dedicated video shorts to publish on their site. They also had some five-second motion graphics produced to top and tail the videos with context and branding. This pretty common requirement is a great idea on the web, where a user might land at your video having followed a link and be viewing a page without much context. Known as bumpers, these short introduction clips help brand a video and make it look a lot more professional. Adding bumpers to a video The simplest way to add bumpers to a video would be to edit them on to the start and end of the video file itself. Cooking the bumpers into the video file is easy, but should you ever want to update them it can become a real headache. If the branding needs updating, for example, you’d need to re-edit and re-encode all your videos. Not a fun task. What if the bumpers could be added dynamically? That would enable you to use the same bumper for multiple videos (decreasing download time for users who might watch more than one) and to update the bumpers whenever you wanted. You could change them seasonally, update them for special promotions, run different advertising slots, perform multivariate testing, or even target different bumpers to different users. The trade-off, of course, is that if you dynamically add your bumpers, there’s a chance that a user in a given circumstance might not see the bumper. For example, if the main video feature was uploaded to YouTube, you’d have no way to control the playback. As always, you need to weigh up the pros and cons and make your choice. HTML5 bumpers If you wanted to dyna… | 2012 | Drew McLellan | drewmclellan | 2012-12-01T00:00:00+00:00 | https://24ways.org/2012/html5-video-bumpers/ | code |
| 124 | 124 | Writing Responsible JavaScript | Without a doubt, JavaScript has been making something of a comeback in the last year. If you’re involved in client-side development in any way at all, chances are that you’re finding yourself writing more JavaScript now than you have in a long time. If you learned most of your JavaScript back when DHTML was all the rage and before DOM Scripting was in vogue, there have been some big shifts in the way scripts are written. Most of these are in the way event handlers are assigned and functions declared. Both of these changes are driven by the desire to write scripts that are responsible page citizens, both in not tying behaviour to content and in taking care not to conflict with other scripts. I thought it may be useful to look at some of these more responsible approaches to learn how to best write scripts that are independent of the page content and are safely portable between different applications. Event Handling Back in the heady days of Web 1.0, if you wanted to have an object on the page react to something like a click, you would simply go ahead and attach an onclick attribute. This was easy and understandable, but much like the font tag or the style attribute, it has the downside of mixing behaviour or presentation in with our content. As we’re learned with CSS, there are big benefits in keeping those layers separate. Hey, if it works for CSS, it should work for JavaScript too. Just like with CSS, instead of adding an attribute to our element within the document, the more responsible way to do that is to look for the item from your script (like CSS does with a selector) and then assign the behaviour to it. To give an example, take this oldskool onclick use case: <a id="anim-link" href="#" onclick="playAnimation()">Play the animation</a> This could be rewritten by removing the onclick attribute, and instead doing the following from within your JavaScript. document.getElementById('anim-link').onclick = playAnimation; It’s all in the timing Of course, it’s never quite that easy. To be able to attach tha… | 2006 | Drew McLellan | drewmclellan | 2006-12-10T00:00:00+00:00 | https://24ways.org/2006/writing-responsible-javascript/ | code |
| 132 | 132 | Tasty Text Trimmer | In most cases, when designing a user interface it’s best to make a decision about how data is best displayed and stick with it. Failing to make a decision ultimately leads to too many user options, which in turn can be taxing on the poor old user. Under some circumstances, however, it’s good to give the user freedom in customising their workspace. One good example of this is the ‘Article Length’ tool in Apple’s Safari RSS reader. Sliding a slider left of right dynamically changes the length of each article shown. It’s that kind of awesomey magic stuff that’s enough to keep you from sleeping. Let’s build one. The Setup Let’s take a page that has lots of long text items, a bit like a news page or like Safari’s RSS items view. If we were to attach a class name to each element we wanted to resize, that would give us something to hook onto from the JavaScript. Example 1: The basic page. As you can see, I’ve wrapped my items in a DIV and added a class name of chunk to them. It’s these chunks that we’ll be finding with the JavaScript. Speaking of which … Our Core Functions There are two main tasks that need performing in our script. The first is to find the chunks we’re going to be resizing and store their original contents away somewhere safe. We’ll need this so that if we trim the text down we’ll know what it was if the user decides they want it back again. We’ll call this loadChunks. var loadChunks = function(){ var everything = document.getElementsByTagName('*'); var i, l; chunks = []; for (i=0, l=everything.length; i<l; i++){ if (everything[i].className.indexOf(chunkClass) > -1){ chunks.push({ ref: everything[i], original: everything[i].innerHTML }); } } }; The variable chunks is stored outside of this function so that we can access it from our next core function, which is doTrim. var doTrim = function(interval) { if (!chunks) loadChunks(); var i, l; for (i=0, l=chunks.length; i<l; i++){ var a = chunks[i].original.split(' '); a = a.slice(0, interval); chunks[i].ref.inner… | 2006 | Drew McLellan | drewmclellan | 2006-12-01T00:00:00+00:00 | https://24ways.org/2006/tasty-text-trimmer/ | code |
| 165 | 165 | Transparent PNGs in Internet Explorer 6 | Newer breeds of browser such as Firefox and Safari have offered support for PNG images with full alpha channel transparency for a few years. With the use of hacks, support has been available in Internet Explorer 5.5 and 6, but the hacks are non-ideal and have been tricky to use. With IE7 winning masses of users from earlier versions over the last year, full PNG alpha-channel transparency is becoming more of a reality for day-to-day use. However, there are still numbers of IE6 users out there who we can’t leave out in the cold this Christmas, so in this article I’m going to look what we can do to support IE6 users whilst taking full advantage of transparency for the majority of a site’s visitors. So what’s alpha channel transparency? Cast your minds back to the Ghost of Christmas Past, the humble GIF. Images in GIF format offer transparency, but that transparency is either on or off for any given pixel. Each pixel’s either fully transparent, or a solid colour. In GIF, transparency is effectively just a special colour you can chose for a pixel. The PNG format tackles the problem rather differently. As well as having any colour you chose, each pixel also carries a separate channel of information detailing how transparent it is. This alpha channel enables a pixel to be fully transparent, fully opaque, or critically, any step in between. This enables designers to produce images that can have, for example, soft edges without any of the ‘halo effect’ traditionally associated with GIF transparency. If you’ve ever worked on a site that has different colour schemes and therefore requires multiple versions of each graphic against a different colour, you’ll immediately see the benefit. What’s perhaps more interesting than that, however, is the extra creative freedom this gives designers in creating beautiful sites that can remain web-like in their ability to adjust, scale and reflow. The Internet Explorer problem Up until IE7, there has been no fully native support for PNG alpha channel transparency in Internet Expl… | 2007 | Drew McLellan | drewmclellan | 2007-12-01T00:00:00+00:00 | https://24ways.org/2007/supersleight-transparent-png-in-ie6/ | code |
| 181 | 181 | Working With RGBA Colour | When Tim and I were discussing the redesign of this site last year, one of the clear goals was to have a graphical style without making the pages heavy with a lot of images. When we launched, a lot of people were surprised that the design wasn’t built with PNGs. Instead we’d used RGBA colour values, which is part of the CSS3 specification. What is RGBA Colour? We’re all familiar with specifying colours in CSS using by defining the mix of red, green and blue light required to achieve our tone. This is fine and dandy, but whatever values we specify have one thing in common — the colours are all solid, flat, and well, a bit boring. Flat RGB colours CSS3 introduces a couple of new ways to specify colours, and one of those is RGBA. The A stands for Alpha, which refers to the level of opacity of the colour, or to put it another way, the amount of transparency. This means that we can set not only the red, green and blue values, but also control how much of what’s behind the colour shows through. Like with layers in Photoshop. Don’t We Have Opacity Already? The ability to set the opacity on a colour differs subtly from setting the opacity on an element using the CSS opacity property. Let’s look at an example. Here we have an H1 with foreground and background colours set against a page with a patterned background. Heading with no transparency applied h1 { color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); } By setting the CSS opacity property, we can adjust the transparency of the entire element and its contents: Heading with 50% opacity on the element h1 { color: rgb(0, 0, 0); background-color: rgb(255, 255, 255); opacity: 0.5; } RGBA colour gives us something different – the ability to control the opacity of the individual colours rather than the entire element. So we can set the opacity on just the background: 50% opacity on just the background colour h1 { color: rgb(0, 0, 0); background-color: rgba(255, 255, 255, 0.5); } Or leave the background solid and change the opacity on just th… | 2009 | Drew McLellan | drewmclellan | 2009-12-01T00:00:00+00:00 | https://24ways.org/2009/working-with-rgba-colour/ | code |
| 220 | 220 | Finding Your Way with Static Maps | Since the introduction of the Google Maps service in 2005, online maps have taken off in a way not really possible before the invention of slippy map interaction. Although quickly followed by a plethora of similar services from both commercial and non-commercial parties, Google’s first-mover advantage, and easy-to-use developer API saw Google Maps become pretty much the de facto mapping service. It’s now so easy to add a map to a web page, there’s no reason not to. Dropping an iframe map into your page is as simple as embedding a YouTube video. But there’s one crucial drawback to both the solution Google provides for you to drop into your page and the code developers typically implement themselves – they don’t work without JavaScript. A bit about JavaScript Back in October of this year, The Yahoo! Developer Network blog ran some tests to measure how many visitors to the Yahoo! home page didn’t have JavaScript available or enabled in their browser. It’s an interesting test when you consider that the audience for the Yahoo! home page (one of the most visited pages on the web) represents about as mainstream a sample as you’ll find. If there’s any such thing as an ‘average Web user’ then this is them. The results surprised me. It varied from region to region, but at most just two per cent of visitors didn’t have JavaScript running. To be honest, I was expecting it to be higher, but this quote from the article caught my attention: While the percentage of visitors with JavaScript disabled seems like a low number, keep in mind that small percentages of big numbers are also big numbers. That’s right, of course, and it got me thinking about what that two per cent means. For many sites, two per cent is the number of visitors using the Opera web browser, using IE6, or using Mobile Safari. So, although a small percentage of the total, users without JavaScript can’t just be forgotten about, and catering for them is at the very heart of how the web is supposed to work. Starting with content in HTML, we layer on … | 2010 | Drew McLellan | drewmclellan | 2010-12-01T00:00:00+00:00 | https://24ways.org/2010/finding-your-way-with-static-maps/ | code |
| 264 | 264 | Dynamic Social Sharing Images | Way back when social media was new, you could be pretty sure that whatever you posted would be read by those who follow you. If you’d written a blog post and you wanted to share it with those who follow you, you could post a link and your followers would see it in their streams. Oh heady days! With so many social channels and a proliferation of content and promotions flying past in everyone’s streams, it’s no longer enough to share content on social media, you have to actively sell it if you want it to be seen. You really need to make the most of every opportunity to catch a reader’s attention if you’re trying to get as many eyes as possible on that sweet, sweet social content. One of the best ways to grab attention with your posts or tweets is to include an image. There’s heaps of research that says that having images in your posts helps them stand out to followers. Reports I found showed figures from anything from 35% to 150% improvement from just having image in a post. Unfortunately, the details were surrounded with gross words like engagement and visual marketing assets and so I had to close the page before I started to hate myself too much. So without hard stats to quote, we’ll call it a rule of thumb. The rule of thumb is that posts with images will grab more attention than those without, so it makes sense that when adding pages to a website, you should make sure that they have social media sharing images associated with them. Adding sharing images The process for declaring an image to be used in places like Facebook and Twitter is very simple, and at this point is familiar to many of us. You add a meta tag to the head of the page to point to the location of the image to use. When a link to the page is added to a post, the social network will fetch the page, look for the meta tag and then use the image you specified. <meta property="og:image" content="https://example.com/my_image.jpg"> There’s a good post on this over at CSS-Tricks if you need to bone up on the details of this and other similar meta tags … | 2018 | Drew McLellan | drewmclellan | 2018-12-24T00:00:00+00:00 | https://24ways.org/2018/dynamic-social-sharing-images/ | code |
| 271 | 271 | Creating Custom Font Stacks with Unicode-Range | Any web designer or front-end developer worth their salt will be familiar with the CSS @font-face rule used for embedding fonts in a web page. We’ve all used it — either directly in our code ourselves, or via one of the web font services like Fontdeck, Typekit or Google Fonts. If you’re like me, however, you’ll be used to just copying and pasting in a specific incantation of lines designed to get different formats of fonts working in different browsers, and may not have really explored all the capabilities of @font-face properties as defined by the spec. One such property — the unicode-range descriptor — sounds pretty dull and is easily overlooked. It does, however, have some fairly interesting possibilities when put to use in creative ways. Unicode-range The unicode-range descriptor is designed to help when using fonts that don’t have full coverage of the characters used in a page. By adding a unicode-range property to a @font-face rule it is possible to specify the range of characters the font covers. @font-face { font-family: BBCBengali; src: url(fonts/BBCBengali.ttf) format("opentype"); unicode-range: U+00-FF; } In this example, the font is to be used for characters in the range of U+00 to U+FF which runs from the unexciting control characters at the start of the Unicode table (symbols like the exclamation mark start at U+21) right through to ÿ at U+FF – the extent of the Basic Latin character range. By adding multiple @font-face rules for the same family but with different ranges, you can build up complete coverage of the characters your page uses by using different fonts. When I say that it’s possible to specify the range of characters the font covers, that’s true, but what you’re really doing with the unicode-range property is declaring which characters the font should be used for. This becomes interesting, because instead of merely working with the technical constraints of available characters in a given font, we can start picking and choosing characters to use and selectively mix fon… | 2011 | Drew McLellan | drewmclellan | 2011-12-01T00:00:00+00:00 | https://24ways.org/2011/creating-custom-font-stacks-with-unicode-range/ | code |
| 300 | 300 | Taking Device Orientation for a Spin | When The Police sang “Don’t Stand So Close To Me” they weren’t talking about using a smartphone to view a panoramic image on Facebook, but they could have been. For years, technology has driven relentlessly towards devices we can carry around in our pockets, and now that we’re there, we’re expected to take the thing out of our pocket and wave it around in front of our faces like a psychotic donkey in search of its own dangly carrot. But if you can’t beat them, join them. A brave new world A couple of years back all sorts of specs for new HTML5 APIs sprang up much to our collective glee. Emboldened, we ran a few tests and found they basically didn’t work in anything and went off disheartened into the corner for a bit of a sob. Turns out, while we were all busy boohooing, those browser boffins have actually being doing some work, and lo and behold, some of these APIs are even half usable. Mostly literally half usable—we’re still talking about browsers, after all. Now, of course they’re all a bit JavaScripty and are going to involve complex methods and maths and science and probably about a thousand dependancies from Github that will fall out of fashion while we’re still trying to locate the documentation, right? Well, no! So what if we actually wanted to use one of these APIs, say to impress our friends with our ability to make them wave their phones in front of their faces (because no one enjoys looking hapless more than the easily-technologically-impressed), how could we do something like that? Let’s find out. The Device Orientation API The phone-wavy API is more formally known as the DeviceOrientation Event Specification. It does a bunch of stuff that basically doesn’t work, but also gives us three values that represent orientation of a device (a phone, a tablet, probably not a desktop computer) around its x, y and z axes. You might think of it as pitch, roll and yaw if you like to spend your weekends wearing goggles and a leather hat. The main way we access these values is through an event listener, which can … | 2016 | Drew McLellan | drewmclellan | 2016-12-24T00:00:00+00:00 | https://24ways.org/2016/taking-device-orientation-for-a-spin/ | code |
| 314 | 314 | Easy Ajax with Prototype | There’s little more impressive on the web today than a appropriate touch of Ajax. Used well, Ajax brings a web interface much closer to the experience of a desktop app, and can turn a bear of an task into a pleasurable activity. But it’s really hard, right? It involves all the nasty JavaScript that no one ever does often enough to get really good at, and the browser support is patchy, and urgh it’s just so much damn effort. Well, the good news is that – ta-da – it doesn’t have to be a headache. But man does it still look impressive. Here’s how to amaze your friends. Introducing prototype.js Prototype is a JavaScript framework by Sam Stephenson designed to help make developing dynamic web apps a whole lot easier. In basic terms, it’s a JavaScript file which you link into your page that then enables you to do cool stuff. There’s loads of capability built in, a portion of which covers our beloved Ajax. The whole thing is freely distributable under an MIT-style license, so it’s good to go. What a nice man that Mr Stephenson is – friends, let us raise a hearty cup of mulled wine to his good name. Cheers! sluurrrrp. First step is to download the latest Prototype and put it somewhere safe. I suggest underneath the Christmas tree. Cutting to the chase Before I go on and set up an example of how to use this, let’s just get to the crux. Here’s how Prototype enables you to make a simple Ajax call and dump the results back to the page: var url = 'myscript.php'; var pars = 'foo=bar'; var target = 'output-div'; var myAjax = new Ajax.Updater(target, url, {method: 'get', parameters: pars}); This snippet of JavaScript does a GET to myscript.php, with the parameter foo=bar, and when a result is returned, it places it inside the element with the ID output-div on your page. Knocking up a basic example So to get this show on the road, there are three files we need to set up in our site alongside prototype.js. Obviously we need a basic HTML page with prototype.js linked in. This is the page the user interacts with. Secondl… | 2005 | Drew McLellan | drewmclellan | 2005-12-01T00:00:00+00:00 | https://24ways.org/2005/easy-ajax-with-prototype/ | code |
| 315 | 315 | Edit-in-Place with Ajax | Back on day one we looked at using the Prototype library to take all the hard work out of making a simple Ajax call. While that was fun and all, it didn’t go that far towards implementing something really practical. We dipped our toes in, but haven’t learned to swim yet. So here is swimming lesson number one. Anyone who’s used Flickr to publish their photos will be familiar with the edit-in-place system used for quickly amending titles and descriptions on photographs. Hovering over an item turns its background yellow to indicate it is editable. A simple click loads the text into an edit box, right there on the page. Prototype includes all sorts of useful methods to help reproduce something like this for our own projects. As well as the simple Ajax GETs we learned how to do last time, we can also do POSTs (which we’ll need here) and a whole bunch of manipulations to the user interface – all through simple library calls. Here’s what we’re building, so let’s do it. Getting Started There are two major components to this process; the user interface manipulation and the Ajax call itself. Our set-up is much the same as last time (you may wish to read the first article if you’ve not already done so). We have a basic HTML page which links in the prototype.js file and our own editinplace.js. Here’s what Santa dropped down my chimney: <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"> <html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en"> <head> <meta http-equiv="Content-Type" content="text/html; charset=utf-8"/> <title>Edit-in-Place with Ajax</title> <link href="editinplace.css" rel="Stylesheet" type="text/css" /> <script src="prototype.js" type="text/javascript"></script> <script src="editinplace.js" type="text/javascript"></script> </head> <body> <h1>Edit-in-place</h1> <p id="desc">Dashing through the snow on a one horse open sleigh.</p> </body> </html> So that’s our page. The editable item is … | 2005 | Drew McLellan | drewmclellan | 2005-12-23T00:00:00+00:00 | https://24ways.org/2005/edit-in-place-with-ajax/ | code |
| 318 | 318 | Auto-Selecting Navigation | In the article Centered Tabs with CSS Ethan laid out a tabbed navigation system which can be centred on the page. A frequent requirement for any tab-based navigation is to be able to visually represent the currently selected tab in some way. If you’re using a server-side language such as PHP, it’s quite easy to write something like class="selected" into your markup, but it can be even simpler than that. Let’s take the navigation div from Ethan’s article as an example. <div id="navigation"> <ul> <li><a href="#"><span>Home</span></a></li> <li><a href="#"><span>About</span></a></li> <li><a href="#"><span>Our Work</span></a></li> <li><a href="#"><span>Products</span></a></li> <li class="last"><a href="#"><span>Contact Us</span></a></li> </ul> </div> As you can see we have a standard unordered list which is then styled with CSS to look like tabs. By giving each tab a class which describes it’s logical section of the site, if we were to then apply a class to the body tag of each page showing the same, we could write a clever CSS selector to highlight the correct tab on any given page. Sound complicated? Well, it’s not a trivial concept, but actually applying it is dead simple. Modifying the markup First thing is to place a class name on each li in the list: <div id="navigation"> <ul> <li class="home"><a href="#"><span>Home</span></a></li> <li class="about"><a href="#"><span>About</span></a></li> <li class="work"><a href="#"><span>Our Work</span></a></li> <li class="products"><a href="#"><span>Products</span></a></li> <li class="last contact"><a href="#"><span>Contact Us</span></a></li> </ul> </div> Then, on each page of your site, apply the a matching class to the body tag to indicate which section of the site that page is in. For example, on your About page: <body class="about">...</body> Writing the CSS selector You can now write a single CSS rule to match the selected tab on any give… | 2005 | Drew McLellan | drewmclellan | 2005-12-10T00:00:00+00:00 | https://24ways.org/2005/auto-selecting-navigation/ | code |
| 336 | 336 | Practical Microformats with hCard | You’ve probably heard about microformats over the last few months. You may have even read the easily digestible introduction at Digital Web Magazine, but perhaps you’ve not found time to actually implement much yet. That’s understandable, as it can sometimes be difficult to see exactly what you’re adding by applying a microformat to a page. Sure, you’re semantically enhancing the information you’re marking up, and the Semantic Web is a great idea and all, but what benefit is it right now, today? Well, the answer to that question is simple: you’re adding lots of information that can be and is being used on the web here and now. The big ongoing battle amongst the big web companies if one of territory over information. Everyone’s grasping for as much data as possible. Some of that information many of us are cautious to give away, but a lot of is happy to be freely available. Of the data you’re giving away, it makes sense to give it as much meaning as possible, thus enabling anyone from your friends and family to the giant search company down the road to make the most of it. Ok, enough of the waffle, let’s get working. Introducing hCard You may have come across hCard. It’s a microformat for describing contact information (or really address book information) from within your HTML. It’s based on the vCard format, which is the format the contacts/address book program on your computer uses. All the usual fields are available – name, address, town, website, email, you name it. If you’re running Firefox and Greasemonkey (or if you can, just to try this out), install this user script. What it does is look for instances of the hCard microformat in a page, and then add in a link to pass any hCards it finds to a web service which will convert it to a vCard. Take a look at the About the author box at the bottom of this article. It’s a hCard, so you should be able to click the icon the user script inserts and add me to your Outlook contacts or OS X Address Book with just a click. So microformats are useful after all. Free… | 2005 | Drew McLellan | drewmclellan | 2005-12-06T00:00:00+00:00 | https://24ways.org/2005/practical-microformats-with-hcard/ | code |
| 323 | 323 | Introducing UDASSS! | Okay. What’s that mean? Unobtrusive Degradable Ajax Style Sheet Switcher! Boy are you in for treat today ‘cause we’re gonna have a whole lotta Ajaxifida Unobtrucitosity CSS swappin’ Fun! Okay are you really kidding? Nope. I’ve even impressed myself on this one. Unfortunately, I don’t have much time to tell you the ins and outs of what I actually did to get this to work. We’re talking JavaScript, CSS, PHP…Ajax. But don’t worry about that. I’ve always believed that a good A.P.I. is an invisible A.P.I… and this I felt I achieved. The only thing you need to know is how it works and what to do. A Quick Introduction Anyway… First of all, the idea is very simple. I wanted something just like what Paul Sowden put together in Alternative Style: Working With Alternate Style Sheets from Alistapart Magazine EXCEPT a few minor (not-so-minor actually) differences which I’ve listed briefly below: Allow users to switch styles without JavaScript enabled (degradable) Preventing the F.O.U.C. before the window ‘load’ when getting preferred styles Keep the JavaScript entirely off our markup (no onclick’s or onload’s) Make it very very easy to implement (ok, Paul did that too) What I did to achieve this was used server-side cookies instead of JavaScript cookies. Hence, PHP. However this isn’t a “PHP style switcher” – which is where Ajax comes in. For the extreme technical folks, no, there is no xml involved here, or even a callback response. I only say Ajax because everyone knows what ‘it’ means. With that said, it’s the Ajax that sets the cookies ‘on the fly’. Got it? Awesome! What you need Luckily, I’ve done the work for you. It’s all packaged up in a nice zip file (at the end…keep reading for now) – so from here on out, just follow these instructions As I’ve mentioned, one of the things we’ll be working with is PHP. So, first things first, open up a file called index and save it with a ‘.php’ extension. Next, place the following text at the top of your document (even above your DOCTYPE) <?php require_once('uti… | 2005 | Dustin Diaz | dustindiaz | 2005-12-18T00:00:00+00:00 | https://24ways.org/2005/introducing-udasss/ | code |
| 99 | 99 | A Christmas hCard From Me To You | So apparently Christmas is coming. And what is Christmas all about? Well, cleaning out your address book, of course! What better time to go through your contacts, making sure everyone’s details are up date and that you’ve deleted all those nasty clients who never paid on time? It’s also a good time to make sure your current clients and colleagues have your most up-to-date details, so instead of filling up their inboxes with e-cards, why not send them something useful? Something like a… vCard! (See what I did there?) Just in case you’ve been working in a magical toy factory in the upper reaches of Scandinavia for the last few years, I’m going to tell you that now would also be the perfect time to get into microformats. Using the hCard format, we’ll build a very simple web page and markup our contact details in such a way that they’ll be understood by microformats plugins, like Operator or Tails for Firefox, or the cross-browser Microformats Bookmarklet. Oh, and because Christmas is all about dressing up and being silly, we’ll make the whole thing look nice and have a bit of fun with some CSS3 progressive enhancement. If you can’t wait to see what we end up with, you can preview it here. Step 1: Contact Details First, let’s decide what details we want to put on the page. I’d put my full name, my email address, my phone number, and my postal address, but I’d rather not get surprise visits from strangers when I’m fannying about with my baubles, so I’m going to use Father Christmas instead (that’s Santa to you Yanks). Father Christmas fatherchristmas@elliotjaystocks.com 25 Laughingallthe Way Snow Falls Lapland Finland 010 60 58 000 Step 2: hCard Creator Now I’m not sure about you, but I rather like getting the magical robot pixies to do the work for me, so head on over to the hCard Creator and put those pixies to work! Pop in your details and they’ll give you some nice microformatted HTML in turn. <div id="hcard-Father-Christmas" class="vcard"> <a class="url fn" href="http://elliotjaystocks.com/fatherc… | 2008 | Elliot Jay Stocks | elliotjaystocks | 2008-12-10T00:00:00+00:00 | https://24ways.org/2008/a-christmas-hcard-from-me-to-you/ | code |
| 145 | 145 | The Neverending (Background Image) Story | Everyone likes candy for Christmas, and there’s none better than eye candy. Well, that, and just more of the stuff. Today we’re going to combine both of those good points and look at how to create a beautiful background image that goes on and on… forever! Of course, each background image is different, so instead of agonising over each and every pixel, I’m going to concentrate on five key steps that you can apply to any of your own repeating background images. In this example, we’ll look at the Miami Beach background image used on the new FOWA site, which I’m afraid is about as un-festive as you can get. 1. Choose your image wisely I find there are three main criteria when judging photos you’re considering for repetition manipulation (or ‘repetulation’, as I like to say)… simplicity (beware of complex patterns) angle and perspective (watch out for shadows and obvious vanishing points) consistent elements (for easy cloning) You might want to check out this annotated version of the image, where I’ve highlighted elements of the photo that led me to choose it as the right one. The original image purchased from iStockPhoto. The Photoshopped version used on the FOWA site. 2. The power of horizontal lines With the image chosen and your cursor poised for some Photoshop magic, the most useful thing you can do is drag out the edge pixels from one side of the image to create a kind of rough colour ‘template’ on which to work over. It doesn’t matter which side you choose, although you might find it beneficial to use the one with the simplest spread of colour and complex elements. Click and hold on the marquee tool in the toolbar and select the ‘single column marquee tool’, which will span the full height of your document but will only be one pixel wide. Make the selection right at the edge of your document, press ctrl-c / cmd-c to copy the selection you made, create a new layer, and hit ctrl-v / cmd-v to paste the selection onto your new layer. using free transform (ctrl-t / cmd-t), drag out your selection so t… | 2007 | Elliot Jay Stocks | elliotjaystocks | 2007-12-03T00:00:00+00:00 | https://24ways.org/2007/the-neverending-background-image-story/ | code |
| 15 | 15 | Git for Grown-ups | You are a clever and talented person. You create beautiful designs, or perhaps you have architected a system that even my cat could use. Your peers adore you. Your clients love you. But, until now, you haven’t *&^#^! been able to make Git work. It makes you angry inside that you have to ask your co-worker, again, for that *&^#^! command to upload your work. It’s not you. It’s Git. Promise. Yes, this is an article about the popular version control system, Git. But unlike just about every other article written about Git, I’m not going to give you the top five commands that you need to memorize; and I’m not going to tell you all your problems would be solved if only you were using this GUI wrapper or that particular workflow. You see, I’ve come to a grand realization: when we teach Git, we’re doing it wrong. Let me back up for a second and tell you a little bit about the field of adult education. (Bear with me, it gets good and will leave you feeling both empowered and righteous.) Andragogy, unlike pedagogy, is a learner-driven educational experience. There are six main tenets to adult education: Adults prefer to know why they are learning something. The foundation of the learning activities should include experience. Adults prefer to be able to plan and evaluate their own instruction. Adults are more interested in learning things which directly impact their daily activities. Adults prefer learning to be oriented not towards content, but towards problems. Adults relate more to their own motivators than to external ones. Nowhere in this list does it include “memorize the five most popular Git commands”. And yet this is how we teach version control: init, add, commit, branch, push. You’re an expert! Sound familiar? In the hierarchy of learning, memorizing commands is the lowest, or most basic, form of learning. At the peak of learning you are able to not just analyze and evaluate a problem space, but create your own understanding in relation to your existing body of knowledge. “Fine,” I can hear you say… | 2013 | Emma Jane Westby | emmajanewestby | 2013-12-04T00:00:00+00:00 | https://24ways.org/2013/git-for-grownups/ | code |
| 31 | 31 | Dealing with Emergencies in Git | The stockings were hung by the chimney with care, In hopes that version control soon would be there. This summer I moved to the UK with my partner, and the onslaught of the Christmas holiday season began around the end of October (October!). It does mean that I’ve had more than a fair amount of time to come up with horrible Git analogies for this article. Analogies, metaphors, and comparisons help the learner hook into existing mental models about how a system works. They only help, however, if the learner has enough familiarity with the topic at hand to make the connection between the old and new information. Let’s start by painting an updated version of Clement Clarke Moore’s Christmas living room. Empty stockings are hung up next to the fireplace, waiting for Saint Nicholas to come down the chimney and fill them with small treats. Holiday treats are scattered about. A bowl of mixed nuts, the holiday nutcracker, and a few clementines. A string of coloured lights winds its way up an evergreen. Perhaps a few of these images are familiar, or maybe they’re just settings you’ve seen in a movie. It doesn’t really matter what the living room looks like though. The important thing is to ground yourself in your own experiences before tackling a new subject. Instead of trying to brute-force your way into new information, as an adult learner constantly ask yourself: ‘What is this like? What does this remind me of? What do I already know that I can use to map out this new territory?’ It’s okay if the map isn’t perfect. As you refine your understanding of a new topic, you’ll outgrow the initial metaphors, analogies, and comparisons. With apologies to Mr. Moore, let’s give it a try. Getting Interrupted in Git When on the roof there arose such a clatter! You’re happily working on your software project when all of a sudden there are freaking reindeer on the roof! Whatever you’ve been working on is going to need to wait while you investigate the commotion. If you’ve got even a little bit of experience working with Git, … | 2014 | Emma Jane Westby | emmajanewestby | 2014-12-02T00:00:00+00:00 | https://24ways.org/2014/dealing-with-emergencies-in-git/ | code |
| 52 | 52 | Git Rebasing: An Elfin Workshop Workflow | This year Santa’s helpers have been tasked with making a garland. It’s a pretty simple task: string beads onto yarn in a specific order. When the garland reaches a specific length, add it to the main workshop garland. Each elf has a specific sequence they’re supposed to chain, which is given to them via a work order. (This is starting to sound like one of those horrible calculus problems. I promise it isn’t. It’s worse; it’s about Git.) For the most part, the system works really well. The elves are able to quickly build up a shared chain because each elf specialises on their own bit of garland, and then links the garland together. Because of this they’re able to work independently, but towards the common goal of making a beautiful garland. At first the elves are really careful with each bead they put onto the garland. They check with one another before merging their work, and review each new link carefully. As time crunches on, the elves pour a little more cheer into the eggnog cooler, and the quality of work starts to degrade. Tensions rise as mistakes are made and unkind words are said. The elves quickly realise they’re going to need a system to change the beads out when mistakes are made in the chain. The first common mistake is not looking to see what the latest chain is that’s been added to the main garland. The garland is huge, and it sits on a roll in one of the corners of the workshop. It’s a big workshop, so it is incredibly impractical to walk all the way to the roll to check what the last link is on the chain. The elves, being magical, have set up a monitoring system that allows them to keep a local copy of the main garland at their workstation. It’s an imperfect system though, so the elves have to request a manual refresh to see the latest copy. They can request a new copy by running the command git pull --rebase=preserve (They found that if they ran git pull on its own, they ended up with weird loops of extra beads off the main garland, so they’ve opted to use this method.) This keeps the shared garl… | 2015 | Emma Jane Westby | emmajanewestby | 2015-12-07T00:00:00+00:00 | https://24ways.org/2015/git-rebasing/ | code |
| 65 | 65 | The Accessibility Mindset | Accessibility is often characterized as additional work, hard to learn and only affecting a small number of people. Those myths have no logical foundation and often stem from outdated information or misconceptions. Indeed, it is an additional skill set to acquire, quite like learning new JavaScript frameworks, CSS layout techniques or new HTML elements. But it isn’t particularly harder to learn than those other skills. A World Health Organization (WHO) report on disabilities states that, [i]ncluding children, over a billion people (or about 15% of the world’s population) were estimated to be living with disability. Being disabled is not as unusual as one might think. Due to chronic health conditions and older people having a higher risk of disability, we are also currently paving the cowpath to an internet that we can still use in the future. Accessibility has a very close relationship with usability, and advancements in accessibility often yield improvements in the usability of a website. Websites are also more adaptable to users’ needs when they are built in an accessible fashion. Beyond the bare minimum In the time of table layouts, web developers could create code that passed validation rules but didn’t adhere to the underlying semantic HTML model. We later developed best practices, like using lists for navigation, and with HTML5 we started to wrap those lists in nav elements. Working with accessibility standards is similar. The Web Content Accessibility Guidelines (WCAG) 2.0 can inform your decision to make websites accessible and can be used to test that you met the success criteria. What it can’t do is measure how well you met them. W3C developed a long list of techniques that can be used to make your website accessible, but you might find yourself in a situation where you need to adapt those techniques to be the most usable solution for your particular problem. The checkbox below is implemented in an accessible way: The input element has an id and the label associated with the checkbox refers to the in… | 2015 | Eric Eggert | ericeggert | 2015-12-17T00:00:00+00:00 | https://24ways.org/2015/the-accessibility-mindset/ | code |
| 241 | 241 | Jank-Free Image Loads | There are a few fundamental problems with embedding images in pages of hypertext; perhaps chief among them is this: text is very light and loads rather fast; images are much heavier and arrive much later. Consequently, millions (billions?) of times a day, a hapless Web surfer will start reading some text on a page, and then — Your browser doesn’t support HTML5 video. Here is a link to the video instead. — oops! — an image pops in above it, pushing said text down the page, and our poor reader loses their place. By default, partially-loaded pages have the user experience of a slippery fish, or spilled jar of jumping beans. For the rest of this article, I shall call that jarring, no-good jumpiness by its name: jank. And I’ll chart a path into a jank-free future – one in which it’s easy and natural to author <img> elements that load like this: Your browser doesn’t support HTML5 video. Here is a link to the video instead. Jank is a very old problem, and there is a very old solution to it: the width and height attributes on <img>. The idea is: if we stick an image’s dimensions right into the HTML, browsers can know those dimensions before the image loads, and reserve some space on the layout for it so that nothing gets bumped down the page when the image finally arrives. width Specifies the intended width of the image in pixels. When given together with the height, this allows user agents to reserve screen space for the image before the image data has arrived over the network. —The HTML 3.2 Specification, published on January 14 1997 Unfortunately for us, when width and height were first spec’d and implemented, layouts were largely fixed and images were usually only intended to render at their fixed, actual dimensions. When image sizing gets fluid, width and height get weird: See the Pen fluid width + fixed height = distortion by Eric Portis (@eeeps) on CodePen. width and height are too rigid for the responsive world. What we need, and have needed for a very long time, is a way to specify fixed aspect ra… | 2018 | Eric Portis | ericportis | 2018-12-21T00:00:00+00:00 | https://24ways.org/2018/jank-free-image-loads/ | code |
| 54 | 54 | Putting My Patterns through Their Paces | Over the last few years, the conversation around responsive design has shifted subtly, focusing not on designing pages, but on patterns: understanding the small, reusable elements that comprise a larger design system. And given that many of those patterns are themselves responsive, learning to manage these small layout systems has become a big part of my work. The thing is, the more pattern-driven work I do, the more I realize my design process has changed in a number of subtle, important ways. I suppose you might even say that pattern-driven design has, in a few ways, redesigned me. Meet the Teaser Here’s a recent example. A few months ago, some friends and I redesigned The Toast. (It was a really, really fun project, and we learned a lot.) Each page of the site is, as you might guess, stitched together from a host of tiny, reusable patterns. Some of them, like the search form and footer, are fairly unique, and used once per page; others are used more liberally, and built for reuse. The most prevalent example of these more generic patterns is the teaser, which is classed as, uh, .teaser. (Look, I never said I was especially clever.) In its simplest form, a teaser contains a headline, which links to an article: Fairly straightforward, sure. But it’s just the foundation: from there, teasers can have a byline, a description, a thumbnail, and a comment count. In other words, we have a basic building block (.teaser) that contains a few discrete content types – some required, some not. In fact, very few of those pieces need to be present; to qualify as a teaser, all we really need is a link and a headline. But by adding more elements, we can build slight variations of our teaser, and make it much, much more versatile. Nearly every element visible on this page is built out of our generic “teaser” pattern. But the teaser variation I’d like to call out is the one that appears on The Toast’s homepage, on search results or on section fronts. In the main content area, each teaser in the list features larger i… | 2015 | Ethan Marcotte | ethanmarcotte | 2015-12-10T00:00:00+00:00 | https://24ways.org/2015/putting-my-patterns-through-their-paces/ | code |
| 162 | 162 | Conditional Love | “Browser.” The four-letter word of web design. I mean, let’s face it: on the good days, when things just work in your target browsers, it’s marvelous. The air smells sweeter, birds’ songs sound more melodious, and both your design and your code are looking sharp. But on the less-than-good days (which is, frankly, most of them), you’re compelled to tie up all your browsers in a sack, heave them into the nearest river, and start designing all-imagemap websites. We all play favorites, after all: some will swear by Firefox, Opera fans are allegedly legion, and others still will frown upon anything less than the latest WebKit nightly. Thankfully, we do have an out for those little inconsistencies that crop up when dealing with cross-browser testing: CSS patches. Spare the Rod, Hack the Browser Before committing browsercide over some rendering bug, a designer will typically reach for a snippet of CSS fix the faulty browser. Historically referred to as “hacks,” I prefer Dan Cederholm’s more client-friendly alternative, “patches”. But whatever you call them, CSS patches all work along the same principle: supply the proper property value to the good browsers, while giving higher maintenance other browsers an incorrect value that their frustrating idiosyncratic rendering engine can understand. Traditionally, this has been done either by exploiting incomplete CSS support: #content { height: 1%; // Let's force hasLayout for old versions of IE. line-height: 1.6; padding: 1em; } html>body #content { height: auto; // Modern browsers get a proper height value. } or by exploiting bugs in their rendering engine to deliver alternate style rules: #content p { font-size: .8em; /* Hide from Mac IE5 \*/ font-size: .9em; /* End hiding from Mac IE5 */ } We’ve even used these exploits to serve up whole stylesheets altogether: @import url("core.css"); @media tty { i{content:"\";/*" "*/}} @import 'windows-ie5.css'; /*";} }/* */ The list goes on, and on, and on. For every browser, for every bug, there’s a patch availab… | 2007 | Ethan Marcotte | ethanmarcotte | 2007-12-15T00:00:00+00:00 | https://24ways.org/2007/conditional-love/ | code |
| 238 | 238 | Everything You Wanted To Know About Gradients (And a Few Things You Didn’t) | Hello. I am here to discuss CSS3 gradients. Because, let’s face it, what the web really needed was more gradients. Still, despite their widespread use (or is it overuse?), the smartly applied gradient can be a valuable contributor to a designer’s vocabulary. There’s always been a tension between the inherently two-dimensional nature of our medium, and our desire for more intensity, more depth in our designs. And a gradient can evoke so much: the splay of light across your desk, the slow decrease in volume toward the end of your favorite song, the sunset after a long day. When properly applied, graded colors bring a much needed softness to our work. Of course, that whole ‘proper application’ thing is the tricky bit. But given their place in our toolkit and their prominence online, it really is heartening to see we can create gradients directly with CSS. They’re part of the draft images module, and implemented in two of the major rendering engines. Still, I’ve always found CSS gradients to be one of the more confusing aspects of CSS3. So if you’ll indulge me, let’s take a quick look at how to create CSS gradients—hopefully we can make them seem a bit more accessible, and bring a bit more art into the browser. Gradient theory 101 (I hope that’s not really a thing) Right. So before we dive into the code, let’s cover a few basics. Every gradient, no matter how complex, shares a few common characteristics. Here’s a straightforward one: I spent seconds hours designing this gradient. I hope you like it. At either end of our image, we have a final color value, or color stop: on the left, our stop is white; on the right, black. And more color-rich gradients are no different: (Don’t ever really do this. Please. I beg you.) It’s visually more intricate, sure. But at the heart of it, we have just seven color stops (red, orange, yellow, and so on), making for a fantastic gradient all the way. Now, color stops alone do not a gradient make. Between each is a transition point, the fail-over point between the two stop… | 2010 | Ethan Marcotte | ethanmarcotte | 2010-12-22T00:00:00+00:00 | https://24ways.org/2010/everything-you-wanted-to-know-about-gradients/ | code |
| 313 | 313 | Centered Tabs with CSS | Doug Bowman’s Sliding Doors is pretty much the de facto way to build tabbed navigation with CSS, and rightfully so – it is, as they say, rockin’ like Dokken. But since it relies heavily on floats for the positioning of its tabs, we’re constrained to either left- or right-hand navigation. But what if we need a bit more flexibility? What if we need to place our navigation in the center? Styling the li as a floated block does give us a great deal of control over margin, padding, and other presentational styles. However, we should learn to love the inline box – with it, we can create a flexible, centered alternative to floated navigation lists. Humble Beginnings Do an extra shot of ‘nog, because you know what’s coming next. That’s right, a simple unordered list: <div id="navigation"> <ul> <li><a href="#"><span>Home</span></a></li> <li><a href="#"><span>About</span></a></li> <li><a href="#"><span>Our Work</span></a></li> <li><a href="#"><span>Products</span></a></li> <li class="last"><a href="#"><span>Contact Us</span></a></li> </ul> </div> If we were wedded to using floats to style our list, we could easily fix the width of our ul, and trick it out with some margin: 0 auto; love to center it accordingly. But this wouldn’t net us much flexibility: if we ever changed the number of navigation items, or if the user increased her browser’s font size, our design could easily break. Instead of worrying about floats, let’s take the most basic approach possible: let’s turn our list items into inline elements, and simply use text-align to center them within the ul: #navigation ul, #navigation ul li { list-style: none; margin: 0; padding: 0; } #navigation ul { text-align: center; } #navigation ul li { display: inline; margin-right: .75em; } #navigation ul li.last { margin-right: 0; } Our first step is sexy, no? Well, okay, not really – but it gives us a good starting point. We’ve tamed our list by removing its default style… | 2005 | Ethan Marcotte | ethanmarcotte | 2005-12-08T00:00:00+00:00 | https://24ways.org/2005/centered-tabs-with-css/ | code |
| 289 | 289 | Front-End Developers Are Information Architects Too | The theme of this year’s World IA Day was “Information Everywhere, Architects Everywhere”. This article isn’t about what you may consider an information architect to be: someone in the user-experience field, who maybe studied library science, and who talks about taxonomies. This is about a realisation I had a couple of years ago when I started to run an increasing amount of usability-testing sessions with people who have disabilities: that the structure, labelling, and connections that can be made in front-end code is information architecture. People’s ability to be successful online is unequivocally connected to the quality of the code that is written. Places made of information In information architecture we talk about creating places made of information. These places are made of ones and zeros, but we talk about them as physical structures. We talk about going onto a social media platform, posting in blogs, getting locked out of an environment, and building applications. In 2002, Andrew Hinton stated: People live and work in these structures, just as they live and work in their homes, offices, factories and malls. These places are not virtual: they are as real as our own minds. 25 Theses We’re creating structures which people rely on for significant parts of their lives, so it’s critical that we carry out our work responsibly. This means we must use our construction materials correctly. Luckily, our most important material, HTML, has a well-documented specification which tells us how to build robust and accessible places. What is most important, I believe, is to understand the semantics of HTML. Semantics The word “semantic” has its origin in Greek words meaning “significant”, “signify”, and “sign”. In the physical world, a structure can have semantic qualities that tell us something about it. For example, the stunning Westminster Abbey inspires awe and signifies much about the intent and purpose of the structure. The building’s size; the quality of the stone work; the massive, detailed stained glass: these … | 2016 | Francis Storr | francisstorr | 2016-12-17T00:00:00+00:00 | https://24ways.org/2016/front-end-developers-are-information-architects-too/ | code |
| 71 | 71 | Upping Your Web Security Game | When I started working in web security fifteen years ago, web development looked very different. The few non-static web applications were built using a waterfall process and shipped quarterly at best, making it possible to add security audits before every release; applications were deployed exclusively on in-house servers, allowing Info Sec to inspect their configuration and setup; and the few third-party components used came from a small set of well-known and trusted providers. And yet, even with these favourable conditions, security teams were quickly overwhelmed and called for developers to build security in. If the web security game was hard to win before, it’s doomed to fail now. In today’s web development, every other page is an application, accepting inputs and private data from users; software is built continuously, designed to eliminate manual gates, including security gates; infrastructure is code, with servers spawned with little effort and even less security scrutiny; and most of the code in a typical application is third-party code, pulled in through open source repositories with rarely a glance at who provided them. Security teams, when they exist at all, cannot solve this problem. They are vastly outnumbered by developers, and cannot keep up with the application’s pace of change. For us to have a shot at making the web secure, we must bring security into the core. We need to give it no less attention than that we give browser compatibility, mobile design or web page load times. More broadly, we should see security as an aspect of quality, expecting both ourselves and our peers to address it, and taking pride when we do it well. Where To Start? Embracing security isn’t something you do overnight. A good place to start is by reviewing things you’re already doing – and trying to make them more secure. Here are three concrete steps you can take to get going. HTTPS Threats begin when your system interacts with the outside world, which often means HTTP. As is, HTTP is painfully insecure, allowing attacke… | 2015 | Guy Podjarny | guypodjarny | 2015-12-11T00:00:00+00:00 | https://24ways.org/2015/upping-your-web-security-game/ | code |
| 260 | 260 | The Art of Mathematics: A Mandala Maker Tutorial | In front-end development, there’s often a great deal of focus on tools that aim to make our work more efficient. But what if you’re new to web development? When you’re just starting out, the amount of new material can be overwhelming, particularly if you don’t have a solid background in Computer Science. But the truth is, once you’ve learned a little bit of JavaScript, you can already make some pretty impressive things. A couple of years back, when I was learning to code, I started working on a side project. I wanted to make something colorful and fun to share with my friends. This is what my app looks like these days: Mandala Maker user interface The coolest part about it is the fact that it’s a tool: anyone can use it to create something original and brand new. In this tutorial, we’ll build a smaller version of this app – a symmetrical drawing tool in ES5, JavaScript and HTML5. The tutorial app will have eight reflections, a color picker and a Clear button. Once we’re done, you’re on your own and can tweak it as you please. Be creative! Preparations: a blank canvas The first thing you’ll need for this project is a designated drawing space. We’ll use the HTML5 canvas element and give it a width and a height of 600px (you can set the dimensions to anything else if you like). Files Create 3 files: index.html, styles.css, main.js. Don’t forget to include your JS and CSS files in your HTML. <!DOCTYPE html> <html> <head> <meta charset="utf-8"> <link rel="stylesheet" type="text/css" href="style.css"> <script src="main.js"></script> </head> <body onload="init()"> <canvas width="600" height="600"> <p>Your browser doesn't support canvas.</p> </canvas> </body> </html> I’ll ask you to update your HTML file at a later point, but the CSS file we’ll start with will stay the same throughout the project. This is the full CSS we are going to use: body { background-color: #ccc; text-align: center; } canvas { touch-action: none; background-color: #fff; } button { font-size: 110%;… | 2018 | Hagar Shilo | hagarshilo | 2018-12-02T00:00:00+00:00 | https://24ways.org/2018/the-art-of-mathematics/ | code |
| 21 | 21 | Keeping Parts of Your Codebase Private on GitHub | Open source is brilliant, there’s no denying that, and GitHub has been instrumental in open source’s recent success. I’m a keen open-sourcerer myself, and I have a number of projects on GitHub. However, as great as sharing code is, we often want to keep some projects to ourselves. To this end, GitHub created private repositories which act like any other Git repository, only, well, private! A slightly less common issue, and one I’ve come up against myself, is the desire to only keep certain parts of a codebase private. A great example would be my site, CSS Wizardry; I want the code to be open source so that people can poke through and learn from it, but I want to keep any draft blog posts private until they are ready to go live. Thankfully, there is a very simple solution to this particular problem: using multiple remotes. Before we begin, it’s worth noting that you can actually build a GitHub Pages site from a private repo. You can keep the entire source private, but still have GitHub build and display a full Pages/Jekyll site. I do this with csswizardry.net. This post will deal with the more specific problem of keeping only certain parts of the codebase (branches) private, and expose parts of it as either an open source project, or a built GitHub Pages site. N.B. This post requires some basic Git knowledge. Adding your public remote Let’s assume you’re starting from scratch and you currently have no repos set up for your project. (If you do already have your public repo set up, skip to the “Adding your private remote” section.) So, we have a clean slate: nothing has been set up yet, we’re doing all of that now. On GitHub, create two repositories. For the sake of this article we shall call them site.com and private.site.com. Make the site.com repo public, and the private.site.com repo private (you will need a paid GitHub account). On your machine, create the site.com directory, in which your project will live. Do your initial work in there, commit some stuff — whatever you need to do. Now we need to link… | 2013 | Harry Roberts | harryroberts | 2013-12-09T00:00:00+00:00 | https://24ways.org/2013/keeping-parts-of-your-codebase-private-on-github/ | code |
| 303 | 303 | We Need to Talk About Technical Debt | In my work with clients, a lot of time is spent assessing old, legacy, sprawling systems and identifying good code, bad code, and technical debt. One thing that constantly strikes me is the frequency with which bad code and technical debt are conflated, so let me start by saying this: Not all technical debt is bad code, and not all bad code is technical debt. Sometimes your bad code is just that: bad code. Calling it technical debt often feels like a more forgiving and friendly way of referring to what may have just been a poor implementation or a substandard piece of work. It is an oft-misunderstood phrase, and when mistaken for meaning ‘anything legacy or old hacky or nasty or bad’, technical debt is swept under the carpet along with all of the other parts of the codebase we’d rather not talk about, and therein lies the problem. We need to talk about technical debt. What We Talk About When We Talk About Technical Debt The thing that separates technical debt from the rest of the hacky code in our project is the fact that technical debt, by definition, is something that we knowingly and strategically entered into. Debt doesn’t happen by accident: debt happens when we choose to gain something otherwise-unattainable immediately in return for paying it back (with interest) later on. An Example You’re a front-end developer working on a SaaS product, and your sales team is courting a large customer – a customer so large that you can’t really afford to lose them. The customer tells you that as long as you can allow them to theme your SaaS application according to their branding, they are willing to sign on the dotted line… the problem being that your CSS architecture was never designed to incorporate theming at all, and there isn’t currently a nice, clean way to incorporate a theme into the codebase. You and the business make the decision that you will hack a theme into the product in two days. It’s going to be messy, it’s going to be ugly, but you can’t afford to lose a huge customer just because your CSS isn’t quite … | 2016 | Harry Roberts | harryroberts | 2016-12-05T00:00:00+00:00 | https://24ways.org/2016/we-need-to-talk-about-technical-debt/ | code |
| 136 | 136 | Making XML Beautiful Again: Introducing Client-Side XSL | Remember that first time you saw XML and got it? When you really understood what was possible and the deep meaning each element could carry? Now when you see XML, it looks ugly, especially when you navigate to a page of XML in a browser. Well, with every modern browser now supporting XSL 1.0, I’m going to show you how you can turn something as simple as an ATOM feed into a customised page using a browser, Notepad and some XSL. What on earth is this XSL? XSL is a family of recommendations for defining XML document transformation and presentation. It consists of three parts: XSLT 1.0 – Extensible Stylesheet Language Transformation, a language for transforming XML XPath 1.0 – XML Path Language, an expression language used by XSLT to access or refer to parts of an XML document. (XPath is also used by the XML Linking specification) XSL-FO 1.0 – Extensible Stylesheet Language Formatting Objects, an XML vocabulary for specifying formatting semantics XSL transformations are usually a one-to-one transformation, but with newer versions (XSL 1.1 and XSL 2.0) its possible to create many-to-many transformations too. So now you have an overview of XSL, on with the show… So what do I need? So to get going you need a browser an supports client-side XSL transformations such as Firefox, Safari, Opera or Internet Explorer. Second, you need a source XML file – for this we’re going to use an ATOM feed from Flickr.com. And lastly, you need an editor of some kind. I find Notepad++ quick for short XSLs, while I tend to use XMLSpy or Oxygen for complex XSL work. Because we’re doing a client-side transformation, we need to modify the XML file to tell it where to find our yet-to-be-written XSL file. Take a look at the source XML file, which originates from my Flickr photos tagged sky, in ATOM format. The top of the ATOM file now has an additional <?xml-stylesheet /> instruction, as can been seen on Line 2 below. This instructs the browser to use the XSL file to transform the document. <?xml version="1.0" encoding="utf-8" sta… | 2006 | Ian Forrester | ianforrester | 2006-12-07T00:00:00+00:00 | https://24ways.org/2006/beautiful-xml-with-xsl/ | code |
| 327 | 327 | Improving Form Accessibility with DOM Scripting | The form label element is an incredibly useful little element – it lets you link the form field unquestionably with the descriptive label text that sits alongside or above it. This is a very useful feature for people using screen readers, but there are some problems with this element. What happens if you have one piece of data that, for various reasons (validation, the way your data is collected/stored etc), needs to be collected using several form elements? The classic example is date of birth – ideally, you’ll ask for the date of birth once but you may have three inputs, one each for day, month and year, that you also need to provide hints about the format required. The problem is that to be truly accessible you need to label each field. So you end up needing something to say “this is a date of birth”, “this is the day field”, “this is the month field” and “this is the day field”. Seems like overkill, doesn’t it? And it can uglify a form no end. There are various ways that you can approach it (and I think I’ve seen them all). Some people omit the label and rely on the title attribute to help the user through; others put text in a label but make the text 1 pixel high and merging in to the background so that screen readers can still get that information. The most common method, though, is simply to set the label to not display at all using the CSS display:none property/value pairing (a technique which, for the time being, seems to work on most screen readers). But perhaps we can do more with this? The technique I am suggesting as another alternative is as follows (here comes the pseudo-code): Start with a totally valid and accessible form Ensure that each form input has a label that is linked to its related form control Apply a class to any label that you don’t want to be visible (for example superfluous) Then, through the magic of unobtrusive JavaScript/the DOM, manipulate the page as follows once the page has loaded: Find all the label elements that are marked as superfluous and hide them Find ou… | 2005 | Ian Lloyd | ianlloyd | 2005-12-03T00:00:00+00:00 | https://24ways.org/2005/improving-form-accessibility-with-dom-scripting/ | code |
| 179 | 179 | Have a Field Day with HTML5 Forms | Forms are usually seen as that obnoxious thing we have to markup and style. I respectfully disagree: forms (on a par with tables) are the most exciting thing we have to work with. Here we’re going to take a look at how to style a beautiful HTML5 form using some advanced CSS and latest CSS3 techniques. I promise you will want to style your own forms after you’ve read this article. Here’s what we’ll be creating: The form. (Icons from Chalkwork Payments) Meaningful markup We’re going to style a simple payment form. There are three main sections on this form: The person’s details The address details The credit card details We are also going to use some of HTML5’s new input types and attributes to create more meaningful fields and use less unnecessary classes and ids: email, for the email field tel, for the telephone field number, for the credit card number and security code required, for required fields placeholder, for the hints within some of the fields autofocus, to put focus on the first input field when the page loads There are a million more new input types and form attributes on HTML5, and you should definitely take a look at what’s new on the W3C website. Hopefully this will give you a good idea of how much more fun form markup can be. A good foundation Each section of the form will be contained within its own fieldset. In the case of the radio buttons for choosing the card type, we will enclose those options in another nested fieldset. We will also be using an ordered list to group each label / input pair. This will provide us with a (kind of) semantic styling hook and it will also make the form easier to read when viewing with no CSS applied: The unstyled form So here’s the markup we are going to be working with: <form id=payment> <fieldset> <legend>Your details</legend> <ol> <li> <label for=name>Name</label> <input id=name name=name type=text placeholder="First and last name" required autofocus> </li> <li> <label for=email>Email</label> <input id=… | 2009 | Inayaili de León Persson | inayailideleon | 2009-12-03T00:00:00+00:00 | https://24ways.org/2009/have-a-field-day-with-html5-forms/ | code |
| 240 | 240 | My CSS Wish List | I love Christmas. I love walking around the streets of London, looking at the beautifully decorated windows, seeing the shiny lights that hang above Oxford Street and listening to Christmas songs. I’m not going to lie though. Not only do I like buying presents, I love receiving them too. I remember making long lists that I would send to Father Christmas with all of the Lego sets I wanted to get. I knew I could only get one a year, but I would spend days writing the perfect list. The years have gone by, but I still enjoy making wish lists. And I’ll tell you a little secret: my mum still asks me to send her my Christmas list every year. This time I’ve made my CSS wish list. As before, I’d be happy with just one present. Before I begin… … this list includes: things that don’t exist in the CSS specification (if they do, please let me know in the comments – I may have missed them); others that are in the spec, but it’s incomplete or lacks use cases and examples (which usually means that properties haven’t been implemented by even the most recent browsers). Like with any other wish list, the further down I go, the more unrealistic my expectations – but that doesn’t mean I can’t wish. Some of the things we wouldn’t have thought possible a few years ago have been implemented and our wishes fulfilled (think multiple backgrounds, gradients and transformations, for example). The list Cross-browser implementation of font-size-adjust When one of the fall-back fonts from your font stack is used, rather than the preferred (first) one, you can retain the aspect ratio by using this very useful property. It is incredibly helpful when the fall-back fonts are smaller or larger than the initial one, which can make layouts look less polished. What font-size-adjust does is divide the original font-size of the fall-back fonts by the font-size-adjust value. This preserves the x-height of the preferred font in the fall-back fonts. Here’s a simple example: p { font-family: Calibri, "Lucida Sans", Verdana, sans-serif; … | 2010 | Inayaili de León Persson | inayailideleon | 2010-12-03T00:00:00+00:00 | https://24ways.org/2010/my-css-wish-list/ | code |
| 37 | 37 | JavaScript Modules the ES6 Way | JavaScript admittedly has plenty of flaws, but one of the largest and most prominent is the lack of a module system: a way to split up your application into a series of smaller files that can depend on each other to function correctly. This is something nearly all other languages come with out of the box, whether it be Ruby’s require, Python’s import, or any other language you’re familiar with. Even CSS has @import! JavaScript has nothing of that sort, and this has caused problems for application developers as they go from working with small websites to full client-side applications. Let’s be clear: it doesn’t mean the new module system in the upcoming version of JavaScript won’t be useful to you if you’re building smaller websites rather than the next Instagram. Thankfully, the lack of a module system will soon be a problem of the past. The next version of JavaScript, ECMAScript 6, will bring with it a full-featured module and dependency management solution for JavaScript. The bad news is that it won’t be landing in browsers for a while yet – but the good news is that the specification for the module system and how it will look has been finalised. The even better news is that there are tools available to get it all working in browsers today without too much hassle. In this post I’d like to give you the gift of JS modules and show you the syntax, and how to use them in browsers today. It’s much simpler than you might think. What is ES6? ECMAScript is a scripting language that is standardised by a company called Ecma International. JavaScript is an implementation of ECMAScript. ECMAScript 6 is simply the next version of the ECMAScript standard and, hence, the next version of JavaScript. The spec aims to be fully comfirmed and complete by the end of 2014, with a target initial release date of June 2015. It’s impossible to know when we will have full feature support across the most popular browsers, but already some ES6 features are landing in the latest builds of Chrome and Firefox. You shouldn’t expect to be… | 2014 | Jack Franklin | jackfranklin | 2014-12-03T00:00:00+00:00 | https://24ways.org/2014/javascript-modules-the-es6-way/ | code |
| 49 | 49 | Universal React | One of the libraries to receive a huge amount of focus in 2015 has been ReactJS, a library created by Facebook for building user interfaces and web applications. More generally we’ve seen an even greater rise in the number of applications built primarily on the client side with most of the logic implemented in JavaScript. One of the main issues with building an app in this way is that you immediately forgo any customers who might browse with JavaScript turned off, and you can also miss out on any robots that might visit your site to crawl it (such as Google’s search bots). Additionally, we gain a performance improvement by being able to render from the server rather than having to wait for all the JavaScript to be loaded and executed. The good news is that this problem has been recognised and it is possible to build a fully featured client-side application that can be rendered on the server. The way in which these apps work is as follows: The user visits www.yoursite.com and the server executes your JavaScript to generate the HTML it needs to render the page. In the background, the client-side JavaScript is executed and takes over the duty of rendering the page. The next time a user clicks, rather than being sent to the server, the client-side app is in control. If the user doesn’t have JavaScript enabled, each click on a link goes to the server and they get the server-rendered content again. This means you can still provide a very quick and snappy experience for JavaScript users without having to abandon your non-JS users. We achieve this by writing JavaScript that can be executed on the server or on the client (you might have heard this referred to as isomorphic) and using a JavaScript framework that’s clever enough handle server- or client-side execution. Currently, ReactJS is leading the way here, although Ember and Angular are both working on solutions to this problem. It’s worth noting that this tutorial assumes some familiarity with React in general, its syntax and concepts. If you’d like a refresher, th… | 2015 | Jack Franklin | jackfranklin | 2015-12-05T00:00:00+00:00 | https://24ways.org/2015/universal-react/ | code |
| 305 | 305 | CSS Writing Modes | Since you may not have a lot of time, I’m going to start at the end, with the dessert. You can use a little-known, yet important and powerful CSS property to make text run vertically. Like this. Or instead of running text vertically, you can layout a set of icons or interface buttons in this way. Or, of course, with anything on your page. The CSS I’ve applied makes the browser rethink the orientation of the world, and flow the layout of this element at a 90° angle to “normal”. Check out the live demo, highlight the headline, and see how the cursor is now sideways. See the Pen Writing Mode Demo — Headline by Jen Simmons (@jensimmons) on CodePen. The code for accomplishing this is pretty simple. h1 { writing-mode: vertical-rl; } That’s all it takes to switch the writing mode from the web’s default horizontal top-to-bottom mode to a vertical right-to-left mode. If you apply such code to the html element, the entire page is switched, affecting the scroll direction, too. In my example above, I’m telling the browser that only the h1 will be in this vertical-rl mode, while the rest of my page stays in the default of horizontal-tb. So now the dessert course is over. Let me serve up this whole meal, and explain the the CSS Writing Mode Specification. Why learn about writing modes? There are three reasons I’m teaching writing modes to everyone—including western audiences—and explaining the whole system, instead of quickly showing you a simple trick. We live in a big, diverse world, and learning about other languages is fascinating. Many of you lay out pages in languages like Chinese, Japanese and Korean. Or you might be inspired to in the future. Using writing-mode to turn bits sideways is cool. This CSS can be used in all kinds of creative ways, even if you are working only in English. Most importantly, I’ve found understanding Writing Modes incredibly helpful when understanding Flexbox and CSS Grid. Before I learned Writing Mode, I felt like there was still a big hole in my knowledge, something I just didn’… | 2016 | Jen Simmons | jensimmons | 2016-12-23T00:00:00+00:00 | https://24ways.org/2016/css-writing-modes/ | code |
| 242 | 242 | Creating My First Chrome Extension | Writing a Chrome Extension isn’t as scary at it seems! Not too long ago, I used a Chrome extension called 20 Cubed. I’m far-sighted, and being a software engineer makes it difficult to maintain distance vision. So I used 20 Cubed to remind myself to look away from my screen and rest my eyes. I loved its simple interface and design. I loved it so much, I often forgot to turn it off in the middle of presentations, where it would take over my entire screen. Oops. Unfortunately, the developer stopped updating the extension and removed it from Chrome’s extension library. I was so sad. None of the other eye rest extensions out there matched my design aesthetic, so I decided to create my own! Want to do the same? Fortunately, Google has some respectable documentation on how to create an extension. And remember, Chrome extensions are just HTML, CSS, and JavaScript. You can add libraries and frameworks, or you can just code the “old-fashioned” way. Sky’s the limit! Setup But first, some things you’ll need to know about before getting started: Callbacks Timeouts Chrome Dev Tools Developing with Chrome extension methods requires a lot of callbacks. If you’ve never experienced the joy of callback hell, creating a Chrome extension will introduce you to this concept. However, things can get confusing pretty quickly. I’d highly recommend brushing up on that subject before getting started. Hyperbole and a Half Timeouts and Intervals are another thing you might want to brush up on. While creating this extension, I didn’t consider the fact that I’d be juggling three timers. And I probably would’ve saved time organizing those and reading up on the Chrome extension Alarms documentation beforehand. But more on that in a bit. On the note of organization, abstraction is important! You might have any combination of the following: The Chrome extension options page The popup from the Chrome Menu The windows or tabs you create The background scripts And that can get unwieldy. You might also edit the existing tabs or windows in the brow… | 2018 | Jennifer Wong | jenniferwong | 2018-12-05T00:00:00+00:00 | https://24ways.org/2018/my-first-chrome-extension/ | code |
| 46 | 46 | Responsive Enhancement | 24 ways has been going strong for ten years. That’s an aeon in internet timescales. Just think of all the changes we’ve seen in that time: the rise of Ajax, the explosion of mobile devices, the unrecognisably changed landscape of front-end tooling. Tools and technologies come and go, but one thing has remained constant for me over the past decade: progressive enhancement. Progressive enhancement isn’t a technology. It’s more like a way of thinking. Instead of thinking about the specifics of how a finished website might look, progressive enhancement encourages you to think about the fundamental meaning of what the website is providing. So instead of thinking of a website in terms of its ideal state in a modern browser on a nice widescreen device, progressive enhancement allows you to think about the core functionality in a more abstract way. Once you’ve figured out what the core functionality is – adding an item to a shopping cart, posting a message, sharing a photo – then you can enable that functionality in the simplest possible way. That usually means starting with good old-fashioned HTML. Links and forms are often all you need. Then, once you have the core functionality working in a basic way, you can start to enhance to make a progressively better experience for more modern browsers. The advantage of working this way isn’t just that your site will work in older browsers (albeit in a rudimentary way). It also ensures that if anything goes wrong in a modern browser, it won’t be catastrophic. There’s a common misconception that progressive enhancement means that you’ll spend your time dealing with older browsers, but in fact the opposite is true. Putting the basic functionality into place doesn’t take very long at all. And once you’ve done that, you’re free to spend all your time experimenting with the latest and greatest browser technologies, secure in the knowledge that even if they aren’t universally supported yet, that’s OK: you’ve already got your fallback in place. The key to thinking about web devel… | 2014 | Jeremy Keith | jeremykeith | 2014-12-09T00:00:00+00:00 | https://24ways.org/2014/responsive-enhancement/ | code |
| 116 | 116 | The IE6 Equation | It is the destiny of one browser to serve as the nemesis of web developers everywhere. At the birth of the Web Standards movement, that role was played by Netscape Navigator 4; an outdated browser that refused to die. Its tenacious existence hampered the adoption of modern standards. Today that role is played by Internet Explorer 6. There’s a sensation that I’m sure you’re familiar with. It’s a horrible mixture of dread and nervousness. It’s the feeling you get when—after working on a design for a while in a standards-compliant browser like Firefox, Safari or Opera—you decide that you can no longer put off the inevitable moment when you must check the site in IE6. Fingers are crossed, prayers are muttered, but alas, to no avail. The nemesis browser invariably screws something up. What do you do next? If the differences in IE6 are minor, you could just leave it be. After all, websites don’t need to look exactly the same in all browsers. But if there are major layout issues and a significant portion of your audience is still using IE6, you’ll probably need to roll up your sleeves and start fixing the problems. A common approach is to quarantine IE6-specific CSS in a separate stylesheet. This stylesheet can then be referenced from the HTML document using conditional comments like this: <!--[if lt IE 7]> <link rel="stylesheet" href="ie6.css" type="text/css" media="screen" /> <![endif]--> That stylesheet will only be served up to Internet Explorer where the version number is less than 7. You can put anything inside a conditional comment. You could put a script element in there. So as well as serving up browser-specific CSS, it’s possible to serve up browser-specific JavaScript. A few years back, before Microsoft released Internet Explorer 7, JavaScript genius Dean Edwards wrote a script called IE7. This amazing piece of code uses JavaScript to make Internet Explorer 5 and 6 behave like a standards-compliant browser. Dean used JavaScript to bootstrap IE’s CSS support. Because the script is specifically targeted… | 2008 | Jeremy Keith | jeremykeith | 2008-12-08T00:00:00+00:00 | https://24ways.org/2008/the-ie6-equation/ | code |
| 128 | 128 | Boost Your Hyperlink Power | There are HTML elements and attributes that we use every day. Headings, paragraphs, lists and images are the mainstay of every Web developer’s toolbox. Perhaps the most common tool of all is the anchor. The humble a element is what joins documents together to create the gloriously chaotic collection we call the World Wide Web. Anatomy of an Anchor The power of the anchor element lies in the href attribute, short for hypertext reference. This creates a one-way link to another resource, usually another page on the Web: <a href="http://allinthehead.com/"> The href attribute sits in the opening a tag and some descriptive text sits between the opening and closing tags: <a href="http://allinthehead.com/">Drew McLellan</a> “Whoop-dee-freakin’-doo,” I hear you say, “this is pretty basic stuff” – and you’re quite right. But there’s more to the anchor element than just the href attribute. The Theory of relativity You might be familiar with the rel attribute from the link element. I bet you’ve got something like this in the head of your documents: <link rel="stylesheet" type="text/css" media="screen" href="styles.css" /> The rel attribute describes the relationship between the linked document and the current document. In this case, the value of rel is “stylesheet”. This means that the linked document is the stylesheet for the current document: that’s its relationship. Here’s another common use of rel: <link rel="alternate" type="application/rss+xml" title="my RSS feed" href="index.xml" /> This describes the relationship of the linked file – an RSS feed – as “alternate”: an alternate view of the current document. Both of those examples use the link element but you are free to use the rel attribute in regular hyperlinks. Suppose you’re linking to your RSS feed in the body of your page: Subscribe to <a href="index.xml">my RSS feed</a>. You can add extra information to this anchor using the rel attribute: Subscribe to <a href="index.xml" rel="alternate" type="application/rss+xml">my RSS feed</a>. There’s no p… | 2006 | Jeremy Keith | jeremykeith | 2006-12-18T00:00:00+00:00 | https://24ways.org/2006/boost-your-hyperlink-power/ | code |
| 169 | 169 | Incite A Riot | Given its relatively limited scope, HTML can be remarkably expressive. With a bit of lateral thinking, we can mark up content such as tag clouds and progress meters, even when we don’t have explicit HTML elements for those patterns. Suppose we want to mark up a short conversation: Alice: I think Eve is watching. Bob: This isn’t a cryptography tutorial …we’re in the wrong example! A note in the the HTML 4.01 spec says it’s okay to use a definition list: Another application of DL, for example, is for marking up dialogues, with each DT naming a speaker, and each DD containing his or her words. That would give us: <dl> <dt>Alice</dt>: <dd>I think Eve is watching.</dd> <dt>Bob</dt>: <dd>This isn't a cryptography tutorial ...we're in the wrong example!</dd> </dl> This usage of a definition list is proof that writing W3C specifications and smoking crack are not mutually exclusive activities. “I think Eve is watching” is not a definition of “Alice.” If you (ab)use a definition list in this way, Norm will hunt you down. The conversation problem was revisited in HTML5. What if dt and dd didn’t always mean “definition title” and “definition description”? A new element was forged: dialog. Now the the “d” in dt and dd doesn’t stand for “definition”, it stands for “dialog” (or “dialogue” if you can spell): <dialog> <dt>Alice</dt>: <dd>I think Eve is watching.</dd> <dt>Bob</dt>: <dd>This isn't a cryptography tutorial ...we're in the wrong example!</dd> </dialog> Problem solved …except that dialog is no longer in the HTML5 spec. Hixie further expanded the meaning of dt and dd so that they could be used inside details (which makes sense—it starts with a “d”) and figure (…um). At the same time as the content model of details and figure were being updated, the completely-unrelated dialog element was dropped. Back to the drawing board, or in this case, the HTML 4.01 specification. The spec defines the cite element thusly: Contains a citation or a reference to other sources. Perfect! There’s even an … | 2009 | Jeremy Keith | jeremykeith | 2009-12-11T00:00:00+00:00 | https://24ways.org/2009/incite-a-riot/ | code |
| 258 | 258 | Mistletoe Offline | It’s that time of year, when we gather together as families to celebrate the life of the greatest person in history. This man walked the Earth long before us, but he left behind words of wisdom. Those words can guide us every single day, but they are at the forefront of our minds during this special season. I am, of course, talking about Murphy, and the golden rule he gave unto us: Anything that can go wrong will go wrong. So true! I mean, that’s why we make sure we’ve got nice 404 pages. It’s not that we want people to ever get served a File Not Found message, but we acknowledge that, despite our best efforts, it’s bound to happen sometime. Murphy’s Law, innit? But there are some Murphyesque situations where even your lovingly crafted 404 page won’t help. What if your web server is down? What if someone is trying to reach your site but they lose their internet connection? These are all things than can—and will—go wrong. I guess there’s nothing we can do about those particular situations, right? Wrong! A service worker is a Murphy-battling technology that you can inject into a visitor’s device from your website. Once it’s installed, it can intercept any requests made to your domain. If anything goes wrong with a request—as is inevitable—you can provide instructions for the browser. That’s your opportunity to turn those server outage frowns upside down. Take those network connection lemons and make network connection lemonade. If you’ve got a custom 404 page, why not make a custom offline page too? Get your server in order Step one is to make …actually, wait. There’s a step before that. Step zero. Get your site running on HTTPS, if it isn’t already. You won’t be able to use a service worker unless everything’s being served over HTTPS, which makes sense when you consider the awesome power that a service worker wields. If you’re developing locally, service workers will work fine for localhost, even without HTTPS. But for a live site, HTTPS is a must. Make an offline page Alright, assuming your site is being served… | 2018 | Jeremy Keith | jeremykeith | 2018-12-04T00:00:00+00:00 | https://24ways.org/2018/mistletoe-offline/ | code |
| 320 | 320 | DOM Scripting Your Way to Better Blockquotes | Block quotes are great. I don’t mean they’re great for indenting content – that would be an abuse of the browser’s default styling. I mean they’re great for semantically marking up a chunk of text that is being quoted verbatim. They’re especially useful in blog posts. <blockquote> <p>Progressive Enhancement, as a label for a strategy for Web design, was coined by Steven Champeon in a series of articles and presentations for Webmonkey and the SxSW Interactive conference.</p> </blockquote> Notice that you can’t just put the quoted text directly between the <blockquote> tags. In order for your markup to be valid, block quotes may only contain block-level elements such as paragraphs. There is an optional cite attribute that you can place in the opening <blockquote> tag. This should contain a URL containing the original text you are quoting: <blockquote cite="http://en.wikipedia.org/wiki/Progressive_Enhancement"> <p>Progressive Enhancement, as a label for a strategy for Web design, was coined by Steven Champeon in a series of articles and presentations for Webmonkey and the SxSW Interactive conference.</p> </blockquote> Great! Except… the default behavior in most browsers is to completely ignore the cite attribute. Even though it contains important and useful information, the URL in the cite attribute is hidden. You could simply duplicate the information with a hyperlink at the end of the quoted text: <blockquote cite="http://en.wikipedia.org/wiki/Progressive_Enhancement"> <p>Progressive Enhancement, as a label for a strategy for Web design, was coined by Steven Champeon in a series of articles and presentations for Webmonkey and the SxSW Interactive conference.</p> <p class="attribution"> <a href="http://en.wikipedia.org/wiki/Progressive_Enhancement">source</a> </p> </blockquote> But somehow it feels wrong to have to write out the same URL twice every time you want to quote something. It could also get very tedious if you have a lot of… | 2005 | Jeremy Keith | jeremykeith | 2005-12-05T00:00:00+00:00 | https://24ways.org/2005/dom-scripting-your-way-to-better-blockquotes/ | code |
| 110 | 110 | Shiny Happy Buttons | Since Mac OS X burst onto our screens, glossy, glassy, shiny buttons have been almost de rigeur, and have essentially, along with reflections and rounded corners, become a cliché of Web 2.0 “design”. But if you can’t beat ‘em you’d better join ‘em. So, in this little contribution to our advent calendar, we’re going to take a plain old boring HTML button, and 2.0 it up the wazoo. But, here’s the catch. We’ll use no images, either in our HTML or our CSS. No sliding doors, no image replacement techniques. Just straight up, CSS, CSS3 and a bit of experimental CSS. And, it will be compatible with pretty much any browser (though with some progressive enhancement for those who keep up with the latest browsers). The HTML We’ll start with our HTML. <button type="submit">This is a shiny button</button> OK, so it’s not shiny yet – but boy will it ever be. Before styling, that’s going to look like this. Ironically, depending on the operating system and browser you are using, it may well be a shiny button already, but that’s not the point. We want to make it shiny 2.0. Our mission is to make it look something like this If you want to follow along at home keep in mind that depending on which browser you are using you may see fewer of the CSS effects we’ve added to create the button. As of writing, only in Safari are all the effects we’ll apply supported. Taking a look at our finished product, here’s what we’ve done to it: We’ve given the button some padding and a width. We’ve changed the text color, and given the text a drop shadow. We’ve given the button a border. We’ve given the button some rounded corners. We’ve given the button a drop shadow. We’ve given the button a gradient background. and remember, all without using any images. Styling the button So, let’s get to work. First, we’ll add given the element some padding and a width: button { padding: .5em; width: 15em; } Next, we’ll add the text color, and the drop shadow: color: #ffffff; text-shadow: 1px 1px 1px #000; A note on text-shadow I… | 2008 | John Allsopp | johnallsopp | 2008-12-18T00:00:00+00:00 | https://24ways.org/2008/shiny-happy-buttons/ | code |
| 288 | 288 | Displaying Icons with Fonts and Data- Attributes | Traditionally, bitmap formats such as PNG have been the standard way of delivering iconography on websites. They’re quick and easy, and it also ensures they’re as pixel crisp as possible. Bitmaps have two drawbacks, however: multiple HTTP requests, affecting the page’s loading performance; and a lack of scalability, noticeable when the page is zoomed or viewed on a screen with a high pixel density, such as the iPhone 4 and 4S. The requests problem is normally solved by using CSS sprites, combining the icon set into one (physically) large image file and showing the relevant portion via background-position. While this works well, it can get a bit fiddly to specify all the positions. In particular, scalability is still an issue. A vector-based format such as SVG sounds ideal to solve this, but browser support is still patchy. The rise and adoption of web fonts have given us another alternative. By their very nature, they’re not only scalable, but resolution-independent too. No need to specify higher resolution graphics for high resolution screens! That’s not all though: Browser support: Unlike a lot of new shiny techniques, they have been supported by Internet Explorer since version 4, and, of course, by all modern browsers. We do need several different formats, however! Design on the fly: The font contains the basic graphic, which can then be coloured easily with CSS – changing colours for themes or :hover and :focus styles is done with one line of CSS, rather than requiring a new graphic. You can also use CSS3 properties such as text-shadow to add further effects. Using -webkit-background-clip: text;, it’s possible to use gradient and inset shadow effects, although this creates a bitmap mask which spoils the scalability. Small file size: specially designed icon fonts, such as Drew Wilson’s Pictos font, can be as little as 12Kb for the .woff font. This is because they contain fewer characters than a fully fledged font. You can see Pictos being used in the wild on sites like Garrett Murray’s Maniacal Rage… | 2011 | Jon Hicks | jonhicks | 2011-12-12T00:00:00+00:00 | https://24ways.org/2011/displaying-icons-with-fonts-and-data-attributes/ | code |
| 64 | 64 | Being Responsive to the Small Things | It’s that time of the year again to trim the tree with decorations. Or maybe a DOM tree? Any web page is made of HTML elements that lay themselves out in a tree structure. We start at the top and then have multiple branches with branches that branch out from there. To decorate our tree, we use CSS to specify which branches should receive the tinsel we wish to adorn upon it. It’s all so lovely. In years past, this was rather straightforward. But these days, our trees need to be versatile. They need to be responsive! Responsive web design is pretty wonderful, isn’t it? Based on our viewport, we can decide how elements on the page should change their appearance to accommodate various constraints using media queries. Clearleft have a delightfully clean and responsive site Alas, it’s not all sunshine, lollipops, and rainbows. With complex layouts, we may have design chunks — let’s call them components — that appear in different contexts. Each context may end up providing its own constraints on the design, both in its default state and in its possibly various responsive states. Media queries, however, limit us to the context of the entire viewport, not individual containers on the page. For every container our component lives in, we need to specify how to rearrange things in that context. The more complex the system, the more contexts we need to write code for. @media (min-width: 800px) { .features > .component { } .sidebar > .component {} .grid > .component {} } Each new component and each new breakpoint just makes the entire system that much more difficult to maintain. @media (min-width: 600px) { .features > .component { } .grid > .component {} } @media (min-width: 800px) { .features > .component { } .sidebar > .component {} .grid > .component {} } @media (min-width: 1024px) { .features > .component { } } Enter container queries Container queries, also known as element queries, allow you to specify conditional CSS based on the width (or maybe height) of the container that an element lives in.… | 2015 | Jonathan Snook | jonathansnook | 2015-12-19T00:00:00+00:00 | https://24ways.org/2015/being-responsive-to-the-small-things/ | code |
| 147 | 147 | Christmas Is In The AIR | That’s right, Christmas is coming up fast and there’s plenty of things to do. Get the tree and lights up, get the turkey, buy presents and who know what else. And what about Santa? He’s got a list. I’m pretty sure he’s checking it twice. Sure, we could use an existing list making web site or even a desktop widget. But we’re geeks! What’s the fun in that? Let’s build our own to-do list application and do it with Adobe AIR! What’s Adobe AIR? Adobe AIR, formerly codenamed Apollo, is a runtime environment that runs on both Windows and OSX (with Linux support to follow). This runtime environment lets you build desktop applications using Adobe technologies like Flash and Flex. Oh, and HTML. That’s right, you web standards lovin’ maniac. You can build desktop applications that can run cross-platform using the trio of technologies, HTML, CSS and JavaScript. If you’ve tried developing with AIR before, you’ll need to get re-familiarized with the latest beta release as many things have changed since the last one (such as the API and restrictions within the sandbox.) To get started To get started in building an AIR application, you’ll need two basic things: The AIR runtime. The runtime is needed to run any AIR-based application. The SDK. The software development kit gives you all the pieces to test your application. Unzip the SDK into any folder you wish. You’ll also want to get your hands on the JavaScript API documentation which you’ll no doubt find yourself getting into before too long. (You can download it, too.) Also of interest, some development environments have support for AIR built right in. Aptana doesn’t have support for beta 3 yet but I suspect it’ll be available shortly. Within the SDK, there are two main tools that we’ll use: one to test the application (ADL) and another to build a distributable package of our application (ADT). I’ll get into this some more when we get to that stage of development. Building our To-do list application The first step to building an application within AIR is to cre… | 2007 | Jonathan Snook | jonathansnook | 2007-12-19T00:00:00+00:00 | https://24ways.org/2007/christmas-is-in-the-air/ | code |
| 184 | 184 | Spruce It Up | The landscape of web typography is changing quickly these days. We’ve gone from the wild west days of sIFR to Cufón to finally seeing font embedding seeing wide spread adoption by browser developers (and soon web designers) with @font-face. For those who’ve felt limited by the typographic possibilities before, this has been a good year. As Mark Boulton has so eloquently elucidated, @font-face embedding doesn’t come without its drawbacks. Font files can be quite large and FOUT—that nasty flash of unstyled text—can be a distraction for users. Data URIs We can battle FOUT by using Data URIs. A Data URI allows the font to be encoded right into the CSS file. When the font comes with the CSS, the flash of unstyled text is mitigated. No extra HTTP requests are required. Don’t be a grinch, though. Sending hundreds of kilobytes down the pipe still isn’t great. Sometimes, all we want to do is spruce up our site with a little typographic sugar. Be Selective Dan Cederholm’s SimpleBits is an attractive site. Take a look at the ampersand within the header of his site. It’s the lovely (and free) Goudy Bookletter 1911 available from The League of Movable Type. The Opentype format is a respectable 28KB. Nothing too crazy but hold on here. Mr. Cederholm is only using the ampersand! Ouch. That’s a lot of bandwidth just for one character. Can we optimize a font like we can an image? Yes. Image optimization essentially works by removing unnecessary image data such as colour data, hidden comments or using compression algorithms. How do you remove unnecessary information from a font? Subsetting. If you’re the adventurous type, grab a copy of FontForge, which is an open source font editing tool. You can open the font, view and edit any of the glyphs and then re-generate the font. The interface is a little clunky but you’ll be able to select any character you don’t want and then cut the glyphs. Re-generate your font and you’ve now got a smaller file. There are certainly more optimizations that can also be made such as … | 2009 | Jonathan Snook | jonathansnook | 2009-12-19T00:00:00+00:00 | https://24ways.org/2009/spruce-it-up/ | code |
| 321 | 321 | Tables with Style | It might not seem like it but styling tabular data can be a lot of fun. From a semantic point of view, there are plenty of elements to tie some style into. You have cells, rows, row groups and, of course, the table element itself. Adding CSS to a paragraph just isn’t as exciting. Where do I start? First, if you have some tabular data (you know, like a spreadsheet with rows and columns) that you’d like to spiffy up, pop it into a table — it’s rightful place! To add more semantics to your table — and coincidentally to add more hooks for CSS — break up your table into row groups. There are three types of row groups: the header (thead), the body (tbody) and the footer (tfoot). You can only have one header and one footer but you can have as many table bodies as is appropriate. Sample table example Inspiration Table Striping To improve scanning information within a table, a common technique is to style alternating rows. Also known as zebra tables. Whether you apply it using a class on every other row or turn to JavaScript to accomplish the task, a handy-dandy trick is to use a semi-transparent PNG as your background image. This is especially useful over patterned backgrounds. tbody tr.odd td { background:transparent url(background.png) repeat top left; } * html tbody tr.odd td { background:#C00; filter: progid:DXImageTransform.Microsoft.AlphaImageLoader( src='background.png', sizingMethod='scale'); } We turn off the default background and apply our PNG hack to have this work in Internet Explorer. Styling Columns Did you know you could style a column? That’s right. You can add special column (col) or column group (colgroup) elements. With that you can add border or background styles to the column. <table> <col id="ingredients"> <col id="serve12"> <col id="serve24"> ... Check out the example. Fun with Backgrounds Pop in a tiled background to give your table some character! Internet Explorer’s PNG hack unfortunately only works well when applied to a cell. To f… | 2005 | Jonathan Snook | jonathansnook | 2005-12-19T00:00:00+00:00 | https://24ways.org/2005/tables-with-style/ | code |
| 38 | 38 | Websites of Christmas Past, Present and Future | The websites of Christmas past The first website was created at CERN. It was launched on 20 December 1990 (just in time for Christmas!), and it still works today, after twenty-four years. Isn’t that incredible?! Why does this website still work after all this time? I can think of a few reasons. First, the authors of this document chose HTML. Of course they couldn’t have known back then the extent to which we would be creating documents in HTML, but HTML always had a lot going for it. It’s built on top of plain text, which means it can be opened in any text editor, and it’s pretty readable, even without any parsing. Despite the fact that HTML has changed quite a lot over the past twenty-four years, extensions to the specification have always been implemented in a backwards-compatible manner. Reading through the 1992 W3C document HTML Tags, you’ll see just how it has evolved. We still have h1 – h6 elements, but I’d not heard of the <plaintext> element before. Despite being deprecated since HTML2, it still works in several browsers. You can see it in action on my website. As well as being written in HTML, there is no run-time compilation of code; the first website simply consists of HTML files transmitted over the web. Due to its lack of complexity, it stood a good chance of surviving in the turbulent World Wide Web. That’s all well and good for a simple, static website. But websites created today are increasingly interactive. Many require a login and provide experiences that are tailored to the individual user. This type of dynamic website requires code to be executed somewhere. Traditionally, dynamic websites would execute such code on the server, and transmit a simple HTML file to the user. As far as the browser was concerned, this wasn’t much different from the first website, as the additional complexity all happened before the document was sent to the browser. Doing it all in the browser In 2003, the first single page interface was created at slashdotslash.com. A single page interface or single page ap… | 2014 | Josh Emerson | joshemerson | 2014-12-08T00:00:00+00:00 | https://24ways.org/2014/websites-of-christmas-past-present-and-future/ | code |
| 263 | 263 | Securing Your Site like It’s 1999 | Running a website in the early years of the web was a scary business. The web was an evolving medium, and people were finding new uses for it almost every day. From book stores to online auctions, the web was an expanding universe of new possibilities. As the web evolved, so too did the knowledge of its inherent security vulnerabilities. Clever tricks that were played on one site could be copied on literally hundreds of other sites. It was a normal sight to log in to a website to find nothing working because someone had breached its defences and deleted its database. Lessons in web security in those days were hard-earned. What follows are examples of critical mistakes that brought down several early websites, and how you can help protect yourself and your team from the same fate. Bad input validation: Trusting anything the user sends you Our story begins in the most unlikely place: Animal Crossing. Animal Crossing was a 2001 video game set in a quaint town, filled with happy-go-lucky inhabitants that co-exist peacefully. Like most video games, Animal Crossing was the subject of many fan communities on the early web. One such unofficial web forum was dedicated to players discussing their adventures in Animal Crossing. Players could trade secrets, ask for help, and share pictures of their virtual homes. This might sound like a model community to you, but you would be wrong. One day, a player discovered a hidden field in the forum’s user profile form. Normally, this page allows users to change their name, their password, or their profile photo. This person discovered that the hidden field contained their unique user ID, which identifies them when the forum’s backend saves profile changes to its database. They discovered that by modifying the form to change the user ID, they could make changes to any other player’s profile. Needless to say, this idyllic online community descended into chaos. Users changed each other’s passwords, deleted each other’s messages, and attacked each-other under the cover of complete anonym… | 2018 | Katie Fenn | katiefenn | 2018-12-01T00:00:00+00:00 | https://24ways.org/2018/securing-your-site-like-its-1999/ | code |
| 117 | 117 | The First Tool You Reach For | Microsoft recently announced that Internet Explorer 8 will be released in the first half of 2009. Compared to the standards support of other major browsers, IE8 will not be especially great, but it will finally catch up with the state of the art in one specific area: support for CSS tables. This milestone has the potential to trigger an important change in the way you approach web design. To show you just how big a difference CSS tables can make, think about how you might code a fluid, three-column layout from scratch. Just to make your life more difficult, give it one fixed-width column, with a background colour that differs from the rest of the page. Ready? Go! Okay, since you’re the sort of discerning web designer who reads 24ways, I’m going to assume you at least considered doing this without using HTML tables for the layout. If you’re especially hardcore, I imagine you began thinking of CSS floats, negative margins, and faux columns. If you did, colour me impressed! Now admit it: you probably also gave an inward sigh about the time it would take to figure out the math on the negative margin overlaps, check for dropped floats in Internet Explorer and generally wrestle each of the major browsers into giving you what you want. If after all that you simply gave up and used HTML tables, I can’t say I blame you. There are plenty of professional web designers out there who still choose to use HTML tables as their main layout tool. Sure, they may know that users with screen readers get confused by inappropriate use of tables, but they have a job to do, and they want tools that will make that job easy, not difficult. Now let me show you how to do it with CSS tables. First, we have a div element for each of our columns, and we wrap them all in another two divs: <div class="container"> <div> <div id="menu"> ⋮ </div> <div id="content"> ⋮ </div> <div id="sidebar"> ⋮ </div> </div> </div> Don’t sweat the “div clutter” in this code. Unlike tables, divs have no semantic meaning, and can therefore b… | 2008 | Kevin Yank | kevinyank | 2008-12-13T00:00:00+00:00 | https://24ways.org/2008/the-first-tool-you-reach-for/ | code |
| 319 | 319 | Avoiding CSS Hacks for Internet Explorer | Back in October, IEBlog issued a call to action, asking developers to clean up their CSS hacks for IE7 testing. Needless to say, a lot of hubbub ensued… both on IEBlog and elsewhere. My contribution to all of the noise was to suggest that developers review their code and use good CSS hacks. But what makes a good hack? Tantek Çelik, the Godfather of CSS hacks, gave us the answer by explaining how CSS hacks should be designed. In short, they should (1) be valid, (2) target only old/frozen/abandoned user-agents/browsers, and (3) be ugly. Tantek also went on to explain that using a feature of CSS is not a hack. Now, I’m not a frequent user of CSS hacks, but Tantek’s post made sense to me. In particular, I felt it gave developers direction on how we should be coding to accommodate that sometimes troublesome browser, Internet Explorer. But what I’ve found, through my work with other developers, is that there is still much confusion over the use of CSS hacks and IE. Using examples from the code I’ve seen recently, allow me to demonstrate how to clean up some IE-specific CSS hacks. The two hacks that I’ve found most often in the code I’ve seen and worked with are the star html bug and the underscore hack. We know these are both IE-specific by checking Kevin Smith’s CSS Filters chart. Let’s look at each of these hacks and see how we can replace them with the same CSS feature-based solution. The star html bug This hack violates Tantek’s second rule as it targets current (and future) UAs. I’ve seen this both as a stand alone rule, as well as an override to some other rule in a style sheet. Here are some code samples: * html div#header {margin-top:-3px;} .promo h3 {min-height:21px;} * html .promo h3 {height:21px;} The underscore hack This hack violates Tantek’s first two rules: it’s invalid (according to the W3C CSS Validator) and it targets current UAs. Here’s an example: ol {padding:0; _padding-left:5px;} Using child selectors We can use the child selector to replace both the star html bug and underscore hack. H… | 2005 | Kimberly Blessing | kimberlyblessing | 2005-12-17T00:00:00+00:00 | https://24ways.org/2005/avoiding-css-hacks-for-internet-explorer/ | code |
| 213 | 213 | Accessibility Through Semantic HTML | Working on Better, a tracker blocker, I spend an awful lot of my time with my nose in other people’s page sources. I’m mostly there looking for harmful tracking scripts, but often notice the HTML on some of the world’s most popular sites is in a sad state of neglect. What does neglected HTML look like? Here’s an example of the markup I found on a news site just yesterday. There’s a bit of text, a few links, and a few images. But mostly it’s div elements. <div class="block_wrapper"> <div class="block_content"> <div class="box"> <div id="block1242235"> <div class="column"> <div class="column_content"> <a class="close" href="#"><i class="fa"></i></a> </div> <div class="btn account_login"></div> Some text <span>more text</span> </div> </div> </div> </div> </div> divs and spans, why do we use them so much? While I find tracking scripts completely inexcusable, I do understand why people write HTML like the above. As developers, we like to use divs and spans as they’re generic elements. They come with no associated default browser styles or behaviour except that div displays as a block, and span displays inline. If we make our page up out of divs and spans, we know we’ll have absolute control over styles and behaviour cross-browser, and we won’t need a CSS reset. Absolute control may seem like an advantage, but there’s a greater benefit to less generic, more semantic elements. Browsers render semantic elements with their own distinct styles and behaviours. For example, button looks and behaves differently from a. And ul is different from ol. These defaults are shortcuts to a more usable and accessible web. They provide consistent and well-tested components for common interactions. Semantic elements aid usability A good example of how browser defaults can benefit the usability of an element is in the <select> option menu. In Safari on the desktop, the browser renders <select> as a popover-style menu. On a touchscreen, Safari overl… | 2017 | Laura Kalbag | laurakalbag | 2017-12-15T00:00:00+00:00 | https://24ways.org/2017/accessibility-through-semantic-html/ | code |
| 283 | 283 | CSS3 Patterns, Explained | Many of you have probably seen my CSS3 patterns gallery. It became very popular throughout the year and it showed many web developers how powerful CSS3 gradients really are. But how many really understand how these patterns are created? The biggest benefit of CSS-generated backgrounds is that they can be modified directly within the style sheet. This benefit is void if we are just copying and pasting CSS code we don’t understand. We may as well use a data URI instead. Important note In all the examples that follow, I’ll be using gradients without a vendor prefix, for readability and brevity. However, you should keep in mind that in reality you need to use all the vendor prefixes (-moz-, -ms-, -o-, -webkit-) as no browser currently implements them without a prefix. Alternatively, you could use -prefix-free and have the current vendor prefix prepended at runtime, only when needed. The syntax described here is the one that browsers currently implement. The specification has since changed, but no browser implements the changes yet. If you are interested in what is coming, I suggest you take a look at the dev version of the spec. If you are not yet familiar with CSS gradients, you can read these excellent tutorials by John Allsopp and return here later, as in the rest of the article I assume you already know the CSS gradient basics: CSS3 Linear Gradients CSS3 Radial Gradients The main idea I’m sure most of you can imagine the background this code generates: background: linear-gradient(left, white 20%, #8b0 80%); It’s a simple gradient from one color to another that looks like this: See this example live As you probably know, in this case the first 20% of the container’s width is solid white and the last 20% is solid green. The other 60% is a smooth gradient between these colors. Let’s try moving these color stops closer to each other: background: linear-gradient(left, white 30%, #8b0 70%); See this example live background: linear-gradient(left, white 40%, #8b0 60%); See this example live backgro… | 2011 | Lea Verou | leaverou | 2011-12-16T00:00:00+00:00 | https://24ways.org/2011/css3-patterns-explained/ | code |
| 92 | 92 | Redesigning the Media Query | Responsive web design is showing us that designing content is more important than designing containers. But if you’ve given RWD a serious try, you know that shifting your focus from the container is surprisingly hard to do. There are many factors and instincts working against you, and one culprit is a perpetrator you’d least suspect. The media query is the ringmaster of responsive design. It lets us establish the rules of the game and gives us what we need most: control. However, like some kind of evil double agent, the media query is actually working against you. Its very nature diverts your attention away from content and forces you to focus on the container. The very act of choosing a media query value means choosing a screen size. Look at the history of the media query—it’s always been about the container. Values like screen, print, handheld and tv don’t have anything to do with content. The modern media query lets us choose screen dimensions, which is great because it makes RWD possible. But it’s still the act of choosing something that is completely unpredictable. Content should dictate our breakpoints, not the container. In order to get our focus back to the only thing that matters, we need a reengineered media query—one that frees us from thinking about screen dimensions. A media query that works for your content, not the window. Fortunately, Sass 3.2 is ready and willing to take on this challenge. Thinking in Columns Fluid grids never clicked for me. I feel so disoriented and confused by their squishiness. Responsive design demands their use though, right? I was ready to surrender until I found a grid that turned my world upright again. The Frameless Grid by Joni Korpi demonstrates that column and gutter sizes can stay fixed. As the screen size changes, you simply add or remove columns to accommodate. This made sense to me and armed with this concept I was able to give Sass the first component it needs to rewrite the media query: fixed column and gutter size variables. $grid-column: 60px; $grid-… | 2012 | Les James | lesjames | 2012-12-13T00:00:00+00:00 | https://24ways.org/2012/redesigning-the-media-query/ | code |
| 308 | 308 | How to Make a Chrome Extension to Delight (or Troll) Your Friends | If you’re like me, you grew up drawing mustaches on celebrities. Every photograph was subject to your doodling wrath, and your brilliance was taken to a whole new level with computer programs like Microsoft Paint. The advent of digital cameras meant that no one was safe from your handiwork, especially not your friends. And when you finally got your hands on Photoshop, you spent hours maniacally giggling at your artistic genius. But today is different. You’re a serious adult with important things to do and a reputation to uphold. You keep up with modern web techniques and trends, and have little time for fun other than a random Giphy on Slack… right? Nope. If there’s one thing 2016 has taught me, it’s that we—the self-serious, world-changing tech movers and shakers of the universe—haven’t changed one bit from our younger, more delightable selves. How do I know? This year I created a Chrome extension called Tabby Cat and watched hundreds of thousands of people ditch productivity for randomly generated cats. Tabby Cat replaces your new tab page with an SVG cat featuring a silly name like “Stinky Dinosaur” or “Tiny Potato”. Over time, the cats collect goodies that vary in absurdity from fishbones to lawn flamingos to Raybans. Kids and adults alike use this extension, and analytics show the majority of use happens Monday through Friday from 9-5. The popularity of Tabby Cat has convinced me there’s still plenty of room in our big, grown-up hearts for fun. Today, we’re going to combine the formula behind Tabby Cat with your intrinsic desire to delight (or troll) your friends, and create a web app that generates your friends with random objects and environments of your choosing. You can publish it as a Chrome extension to replace your new tab, or simply host it as a website and point to it with the New Tab Redirect extension. Here’s a sneak peek at my final result featuring my partner, my cat, and I in cheerfully weird accessories. Your result will look however you want it to. Along the way, we’ll cover how to bui… | 2016 | Leslie Zacharkow | lesliezacharkow | 2016-12-08T00:00:00+00:00 | https://24ways.org/2016/how-to-make-a-chrome-extension/ | code |
| 143 | 143 | Marking Up a Tag Cloud | Everyone’s doing it. The problem is, everyone’s doing it wrong. Harsh words, you might think. But the crimes against decent markup are legion in this area. You see, I’m something of a markup and semantics junkie. So I’m going to analyse some of the more well-known tag clouds on the internet, explain what’s wrong, and then show you one way to do it better. del.icio.us I think the first ever tag cloud I saw was on del.icio.us. Here’s how they mark it up. <div class="alphacloud"> <a href="/tag/.net" class="lb s2">.net</a> <a href="/tag/advertising" class=" s3">advertising</a> <a href="/tag/ajax" class=" s5">ajax</a> ... </div> Unfortunately, that is one of the worst examples of tag cloud markup I have ever seen. The page states that a tag cloud is a list of tags where size reflects popularity. However, despite describing it in this way to the human readers, the page’s author hasn’t described it that way in the markup. It isn’t a list of tags, just a bunch of anchors in a <div>. This is also inaccessible because a screenreader will not pause between adjacent links, and in some configurations will not announce the individual links, but rather all of the tags will be read as just one link containing a whole bunch of words. Markup crime number one. Flickr Ah, Flickr. The darling photo sharing site of the internet, and the biggest blind spot in every standardista’s vision. Forgive it for having atrocious markup and sometimes confusing UI because it’s just so much damn fun to use. Let’s see what they do. <p id="TagCloud"> <a href="/photos/tags/06/" style="font-size: 14px;">06</a> <a href="/photos/tags/africa/" style="font-size: 12px;">africa</a> <a href="/photos/tags/amsterdam/" style="font-size: 14px;">amsterdam</a> ... </p> Again we have a simple collection of anchors like del.icio.us, only this time in a paragraph. But rather than using a class to represent the size of the tag they use an inline style. An inline style using a pixel-based font size. That’s so far away from the goal of sep… | 2006 | Mark Norman Francis | marknormanfrancis | 2006-12-09T00:00:00+00:00 | https://24ways.org/2006/marking-up-a-tag-cloud/ | code |
| 164 | 164 | My Other Christmas Present Is a Definition List | A note from the editors: readers should note that the HTML5 redefinition of definition lists has come to pass and is now à la mode. Last year, I looked at how the markup for tag clouds was generally terrible. I thought this year I would look not at a method of marking up a common module, but instead just at a simple part of HTML and how it generally gets abused. No, not tables. Definition lists. Ah, definition lists. Often used but rarely understood. Examining the definition of definitions To start with, let’s see what the HTML spec has to say about them. Definition lists vary only slightly from other types of lists in that list items consist of two parts: a term and a description. The canonical example of a definition list is a dictionary. Words can have multiple descriptions (even the word definition has at least five). Also, many terms can share a single definition (for example, the word colour can also be spelt color, but they have the same definition). Excellent, we can all grasp that. But it very quickly starts to fall apart. Even in the HTML specification the definition list is mis-used. Another application of DL, for example, is for marking up dialogues, with each DT naming a speaker, and each DD containing his or her words. Wrong. Completely and utterly wrong. This is the biggest flaw in the HTML spec, along with dropping support for the start attribute on ordered lists. “Why?”, you may ask. Let me give you an example from Romeo and Juliet, act 2, scene 2. <dt>Juliet</dt> <dd>Romeo!</dd> <dt>Romeo</dt> <dd>My niesse?</dd> <dt>Juliet</dt> <dd>At what o'clock tomorrow shall I send to thee?</dd> <dt>Romeo</dt> <dd>At the hour of nine.</dd> Now, the problem here is that a given definition can have multiple descriptions (the DD). Really the dialog “descriptions” should be rolled up under the terms, like so: <dt>Juliet</dt> <dd>Romeo!</dd> <dd>At what o'clock tomorrow shall I send to thee?</dd> <dt>Romeo</dt> <dd>… | 2007 | Mark Norman Francis | marknormanfrancis | 2007-12-05T00:00:00+00:00 | https://24ways.org/2007/my-other-christmas-present-is-a-definition-list/ | code |
| 310 | 310 | Fairytale of new Promise | There are only four good Christmas songs. I know, yeah, JavaScript or whatever. We’ll get to that in a minute, I promise. First—and I cannot stress this enough— there are four good Christmas songs. You’re free to disagree with me here, of course, but please try to understand that you will be wrong. They don’t all have the most safe-for-work titles; I can’t list all of them here, but if you choose to let your fingers do the walkin’ to your nearest search engine, I will say that one was released by the band FEAR way back in 1982 and one was on Run the Jewels’ self-titled debut album. The lyrics are a hell of a lot worse than the titles, so maybe wait until you get home from work before you queue them up. Wear headphones, if you’ve got thin walls. For my money, though, the two I can reference by name are the top of that small heap: Tom Waits’ Christmas Card from a Hooker in Minneapolis, and The Pogues’ Fairytale of New York. The former once held the honor of being the only good Christmas song—about which which I was also unequivocally correct, right up until I changed my mind. It’s not the song up for discussion today, but feel free to familiarize yourself just the same—I’ll wait. Fairytale of New York—the top of the list—starts out by hinting at some pretty standard holiday fare; dreams and cheer and whatnot. Typical seasonal stuff, so long as you ignore that the story seems to be recounted as a drunken flashback in a jail cell. You can probably make a few guesses at the underlying spirit of the song based on that framing: following a lucky break, our bright-eyed protagonists move to New York in search of fame and fortune, only to quickly descend into bad decisions, name-calling, and vaguely festive chaos. This song speaks to me on a couple of levels, not the least of which is as a retelling of my day-to-day interactions with JavaScript. Each day’s melody might vary a little bit, granted, but the lyrics almost always follow a pretty clear arc toward “PARENTAL ADVISORY: EXPLICIT CONTENT.” You might have heard a simi… | 2016 | Mat Marquis | matmarquis | 2016-12-19T00:00:00+00:00 | https://24ways.org/2016/fairytale-of-new-promise/ | code |
| 153 | 153 | JavaScript Internationalisation | or: Why Rudolph Is More Than Just a Shiny Nose Dunder sat, glumly staring at the computer screen. “What’s up, Dunder?” asked Rudolph, entering the stable and shaking off the snow from his antlers. “Well,” Dunder replied, “I’ve just finished coding the new reindeer intranet Santa Claus asked me to do. You know how he likes to appear to be at the cutting edge, talking incessantly about Web 2.0, AJAX, rounded corners; he even spooked Comet recently by talking about him as if he were some pushy web server. “I’ve managed to keep him happy, whilst also keeping it usable, accessible, and gleaming — and I’m still on the back row of the sleigh! But anyway, given the elves will be the ones using the site, and they come from all over the world, the site is in multiple languages. Which is great, except when it comes to the preview JavaScript I’ve written for the reindeer order form. Here, have a look…” As he said that, he brought up the textileRef:8234272265470b85d91702:linkStartMarker:“order form in French”:/examples/javascript-internationalisation/initial.fr.html on the screen. (Same in English). “Looks good,” said Rudolph. “But if I add some items,” said Dunder, “the preview appears in English, as it’s hard-coded in the JavaScript. I don’t want separate code for each language, as that’s just silly — I thought about just having if statements, but that doesn’t scale at all…” “And there’s more, you aren’t displaying large numbers in French properly, either,” added Rudolph, who had been playing and looking at part of the source code: function update_text() { var hay = getValue('hay'); var carrots = getValue('carrots'); var bells = getValue('bells'); var total = 50 * bells + 30 * hay + 10 * carrots; var out = 'You are ordering ' + pretty_num(hay) + ' bushel' + pluralise(hay) + ' of hay, ' + pretty_num(carrots) + ' carrot' + pluralise(carrots) + ', and ' + pretty_num(bells) + ' shiny bell' + pluralise(bells) + ', at a total cost of <strong>' + pretty_num(total) + '</strong> gold pieces. Thank you.';… | 2007 | Matthew Somerville | matthewsomerville | 2007-12-08T00:00:00+00:00 | https://24ways.org/2007/javascript-internationalisation/ | code |
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