articles
13 rows where topic = "code" and year = 2009
This data as json, CSV (advanced)
Suggested facets: published (date)
| Link | rowid ▼ | title | contents | year | author | author_slug | published | url | topic |
|---|---|---|---|---|---|---|---|---|---|
| 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 |
| 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 |
| 175 | 175 | Front-End Code Reusability with CSS and JavaScript | Most web standards-based developers are more than familiar with creating their sites with semantic HTML with lots and lots of CSS. With each new page in a design, the CSS tends to grow and grow and more elements and styles are added. But CSS can be used to better effect. The idea of object-oriented CSS isn’t new. Nicole Sullivan has written a presentation on the subject and outlines two main concepts: separate structure and visual design; and separate container and content. Jeff Croft talks about Applying OOP Concepts to CSS: I can make a class of .box that defines some basic layout structure, and another class of .rounded that provides rounded corners, and classes of .wide and .narrow that define some widths, and then easily create boxes of varying widths and styles by assigning multiple classes to an element, without having to duplicate code in my CSS. This concept helps reduce CSS file size, allows for great flexibility, rapid building of similar content areas and means greater consistency throughout the entire design. You can also take this concept one step further and apply it to site behaviour with JavaScript. Build a versatile slideshow I will show you how to build multiple slideshows using jQuery, allowing varying levels of functionality which you may find on one site design. The code will be flexible enough to allow you to add previous/next links, image pagination and the ability to change the animation type. More importantly, it will allow you to apply any combination of these features. Image galleries are simply a list of images, so the obvious choice of marking the content up is to use a <ul>. Many designs, however, do not cater to non-JavaScript versions of the website, and thus don’t take in to account large multiple images. You could also simply hide all the other images in the list, apart from the first image. This method can waste bandwidth because the other images might be downloaded when they are never going to be seen. Taking this second concept — only showing one image — the only co… | 2009 | Trevor Morris | trevormorris | 2009-12-06T00:00:00+00:00 | https://24ways.org/2009/front-end-code-reusability-with-css-and-javascript/ | 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 |
| 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 |
| 180 | 180 | Going Nuts with CSS Transitions | I’m going to show you how CSS 3 transforms and WebKit transitions can add zing to the way you present images on your site. Laying the foundations First we are going to make our images look like mini polaroids with captions. Here’s the markup: <div class="polaroid pull-right"> <img src="../img/seal.jpg" alt=""> <p class="caption">Found this little cutie on a walk in New Zealand!</p> </div> You’ll notice we’re using a somewhat presentational class of pull-right here. This means the logic is kept separate from the code that applies the polaroid effect. The polaroid class has no positioning, which allows it to be used generically anywhere that the effect is required. The pull classes set a float and add appropriate margins—they can be used for things like blockquotes as well. .polaroid { width: 150px; padding: 10px 10px 20px 10px; border: 1px solid #BFBFBF; background-color: white; -webkit-box-shadow: 2px 2px 3px rgba(135, 139, 144, 0.4); -moz-box-shadow: 2px 2px 3px rgba(135, 139, 144, 0.4); box-shadow: 2px 2px 3px rgba(135, 139, 144, 0.4); } The actual polaroid effect itself is simply applied using padding, a border and a background colour. We also apply a nice subtle box shadow, using a property that is supported by modern WebKit browsers and Firefox 3.5+. We include the box-shadow property last to ensure that future browsers that support the eventual CSS3 specified version natively will use that implementation over the legacy browser specific version. The box-shadow property takes four values: three lengths and a colour. The first is the horizontal offset of the shadow—positive values place the shadow on the right, while negative values place it to the left. The second is the vertical offset, positive meaning below. If both of these are set to 0, the shadow is positioned equally on all four sides. The last length value sets the blur radius—the larger the number, the blurrier the shadow (therefore the darker you need to make the colour to have an effect). The colour value can be given in any forma… | 2009 | Natalie Downe | nataliedowne | 2009-12-14T00:00:00+00:00 | https://24ways.org/2009/going-nuts-with-css-transitions/ | 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 |
| 182 | 182 | Breaking Out The Edges of The Browser | HTML5 contains more than just the new entities for a more meaningful document, it also contains an arsenal of JavaScript APIs. So many in fact, that some APIs have outgrown the HTML5 spec’s backyard and have been sent away to grow up all on their own and been given the prestigious honour of being specs in their own right. So when I refer to (bendy finger quote) “HTML5”, I mean the HTML5 specification and a handful of other specifications that help us authors build web applications. Examples of those specs I would include in the umbrella term would be: geolocation, web storage, web databases, web sockets and web workers, to name a few. For all you guys and gals, on this special 2009 series of 24 ways, I’m just going to focus on data storage and offline applications: boldly taking your browser where no browser has gone before! Web Storage The Web Storage API is basically cookies on steroids, a unhealthy dosage of steroids. Cookies are always a pain to work with. First of all you have the problem of setting, changing and deleting them. Typically solved by Googling and blindly relying on PPK’s solution. If that wasn’t enough, there’s the 4Kb limit that some of you have hit when you really don’t want to. The Web Storage API gets around all of the hoops you have to jump through with cookies. Storage supports around 5Mb of data per domain (the spec’s recommendation, but it’s open to the browsers to implement anything they like) and splits in to two types of storage objects: sessionStorage – available to all pages on that domain while the window remains open localStorage – available on the domain until manually removed Support Ignoring beta browsers for our support list, below is a list of the major browsers and their support for the Web Storage API: Latest: Internet Explorer, Firefox, Safari (desktop & mobile/iPhone) Partial: Google Chrome (only supports localStorage) Not supported: Opera (as of 10.10) Usage Both sessionStorage and localStorage support the same interface for accessing their co… | 2009 | Remy Sharp | remysharp | 2009-12-02T00:00:00+00:00 | https://24ways.org/2009/breaking-out-the-edges-of-the-browser/ | 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 |
| 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 |
| 188 | 188 | Don't Lose Your :focus | For many web designers, accessibility conjures up images of blind users with screenreaders, and the difficulties in making sites accessible to this particular audience. Of course, accessibility covers a wide range of situations that go beyond the extreme example of screenreader users. And while it’s true that making a complex site accessible can often be a daunting prospect, there are also many small things that don’t take anything more than a bit of judicious planning, are very easy to test (without having to buy expensive assistive technology), and can make all the difference to certain user groups. In this short article we’ll focus on keyboard accessibility and how careless use of CSS can potentially make your sites completely unusable. Keyboard Access Users who for whatever reason can’t use a mouse will employ a keyboard (or keyboard-like custom interface) to navigate around web pages. By default, they will use TAB and SHIFT + TAB to move from one focusable element (links, form controls and area) of a page to the next. Note: in OS X, you’ll first need to turn on full keyboard access under System Preferences > Keyboard and Mouse > Keyboard Shortcuts. Safari under Windows needs to have the option Press Tab to highlight each item on a webpage in Preferences > Advanced enabled. Opera is the odd one out, as it has a variety of keyboard navigation options – the most relevant here being spatial navigation via Shift+Down, Shift+Up, Shift+Left, and Shift+Right). But I Don’t Like Your Dotted Lines… To show users where they are within a page, browsers place an outline around the element that currently has focus. The “problem” with these default outlines is that some browsers (Internet Explorer and Firefox) also display them when a user clicks on a focusable element with the mouse. Particularly on sites that make extensive use of image replacement on links with “off left” techniques this can create very unsightly outlines that stretch from the replaced element all the way to the left edge of the browser. Outline … | 2009 | Patrick Lauke | patricklauke | 2009-12-09T00:00:00+00:00 | https://24ways.org/2009/dont-lose-your-focus/ | code |
| 191 | 191 | CSS Animations | Friend: You should learn how to write CSS! Me: … Friend: CSS; Cascading Style Sheets. If you’re serious about web design, that’s the next thing you should learn. Me: What’s wrong with <font> tags? That was 8 years ago. Thanks to the hard work of Jeffrey, Andy, Andy, Cameron, Colly, Dan and many others, learning how to decently markup a website and write lightweight stylesheets was surprisingly easy. They made it so easy even a complete idiot (OH HAI) was able to quickly master it. And then… nothing. For a long time, it seemed like there wasn’t happening anything in the land of CSS, time stood still. Once you knew the basics, there wasn’t anything new to keep up with. It looked like a great band split, but people just kept re-releasing their music in various “Best Of!” or “Remastered!” albums. Fast forward a couple of years to late 2006. On the official WebKit blog Surfin’ Safari, there’s an article about something called CSS animations. Great new stuff to play with, but only supported by nightly builds (read: very, very beta) of WebKit. In the following months, they release other goodies, like CSS gradients, CSS reflections, CSS masks, and even more CSS animation sexiness. Whoa, looks like the band got back together, found their second youth, and went into overdrive! The problem was that if you wanted to listen to their new albums, you had to own some kind of new high-tech player no one on earth (besides some early adopters) owned. Back in the time machine. It is now late 2009, close to Christmas. Things have changed. Browsers supporting these new toys are widely available left and right. Even non-techies are using these advanced browsers to surf the web on a daily basis! Epic win? Almost, but at least this gives us enough reason to start learning how we could use all this new CSS voodoo. On Monday, Natalie Downe showed you a good tutorial on Going Nuts with CSS Transitions. Today, I’m taking it one step further… Howto: A basic spinner No matter how fast internet tubes or servers are, we’ll always need spi… | 2009 | Tim Van Damme | timvandamme | 2009-12-15T00:00:00+00:00 | https://24ways.org/2009/css-animations/ | code |
| 192 | 192 | Cleaner Code with CSS3 Selectors | The parts of CSS3 that seem to grab the most column inches on blogs and in articles are the shiny bits. Rounded corners, text shadow and new ways to achieve CSS layouts are all exciting and bring with them all kinds of possibilities for web design. However what really gets me, as a developer, excited is a bit more mundane. In this article I’m going to take a look at some of the ways our front and back-end code will be simplified by CSS3, by looking at the ways we achieve certain visual effects now in comparison to how we will achieve them in a glorious, CSS3-supported future. I’m also going to demonstrate how we can use these selectors now with a little help from JavaScript – which can work out very useful if you find yourself in a situation where you can’t change markup that is being output by some server-side code. The wonder of nth-child So why does nth-child get me so excited? Here is a really common situation, the designer would like the tables in the application to look like this: Setting every other table row to a different colour is a common way to enhance readability of long rows. The tried and tested way to implement this is by adding a class to every other row. If you are writing the markup for your table by hand this is a bit of a nuisance, and if you stick a row in the middle you have to change the rows the class is applied to. If your markup is generated by your content management system then you need to get the server-side code to add that class – if you have access to that code. <!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"> <head> <title>Striping every other row - using classes</title> <style type="text/css"> body { padding: 40px; margin: 0; font: 0.9em Arial, Helvetica, sans-serif; } table { border-collapse: collapse; border: 1px solid #124412; width: 600px; } th { border: 1px solid #124412; background-color: #334f33; color: #fff; padding: 0.4em; text-… | 2009 | Rachel Andrew | rachelandrew | 2009-12-20T00:00:00+00:00 | https://24ways.org/2009/cleaner-code-with-css3-selectors/ | code |
Advanced export
JSON shape: default, array, newline-delimited
CREATE TABLE [articles] (
[title] TEXT ,
[contents] TEXT ,
[year] TEXT ,
[author] TEXT ,
[author_slug] TEXT ,
[published] TEXT ,
[url] TEXT ,
[topic] TEXT
);