HTML5 & CSS3 Snippets

8 CSS preprocessors to speed up development time Less CSS Less is probably the most well known CSS preprocessor. It allow a simplified syntax and the use of variables. Less CSS is for the Ruby programming language, however it looks like Aaron Russel created an extension for creating cached stylesheets your PHP projects can use. Get it: Sass On their website, Sass claims to make CSS fun again. Get it: Turbine If like me, you’re a PHP Lover, here is a css preprocessor made for your favorite language. Get it: Switch CSS Switch is a full featured, production ready CSS preprocessor. Get it: CSS Cacheer CSS Cacheer is a very cool preprocessor which allows developers to create plugins. Get it: CSS Preprocessor Another interesting preprocessor, written in PHP 5. Get it: DtCSS speeds up CSS coding by extending the features to CSS.

Mastering CSS Gradients in Less Than 1 Hour Have you refrained from using CSS Gradients because either you didn’t understand them, or thought the browser support for them wasn’t good enough to consider using them in your projects? Well, it’s time to kill those 1px wide images, my friend. If you’re just curious about how to use CSS Gradients, this is the place for you. Remember, learning about CSS gradients is really important since browsers are getting better and better every day. So, let’s rock! Basic syntax The first thing you must be aware of is browser support. We’ll focus on “standard” browser rules here (e.g. we won’t talk about old from() to() rules), and we’ll have a chapter on IE compatibility at the end (since its filters don’t allow all the effects we’ll see here). This is the basic syntax: This CSS will get this result: So, here are the items explained: Here is an example making use of color positions: Multiple gradients Let’s dig a little deeper and see more cool stuff you can do. Ok, let’s play with some code now:

HTML5 Snippets SpriteMe CSS3 Solutions for Internet Explorer Advertisement Experienced developers understand that CSS3 can be added to new projects with progressive enhancement in mind. This ensures that content is accessible while non-supportive browsers fall back to a less-enhanced experience for the user. But developers could face a situation where a client insists that the enhancements work cross-browser, demanding support even for IE6. In that case, I’ve collected together a number of options that developers can consider for those circumstances where support for a CSS3 feature is required for all versions of Internet Explorer (IE6, IE7, & IE8 — all of which are still currently in significant use). Opacity / Transparency I think all developers are baffled at why Internet Explorer still fails to support this very popular (albeit troublesome) property. The Syntax You really only need the second line, which works in all versions of Internet Explorer. The Demonstration This is the same element without the opacity settings. The Drawbacks Box Shadow

HTML5 Cross Browser Polyfills - GitHub The No-Nonsense Guide to HTML5 Fallbacks So here we're collecting all the shims, fallbacks, and polyfills in order to implant HTML5 functionality in browsers that don't natively support them. The general idea is that: We, as developers, should be able to develop with the HTML5 APIs, and scripts can create the methods and objects that should exist. Developing in this future-proof way means as users upgrade, your code doesn't have to change but users will move to the better, native experience cleanly. Looking to conditionally load these scripts (client-side), based on feature detects? svgweb by Brad Neuberg & others Fallback via FlashSnap.SVG from scratch by the author of Raphaël (Dmitry Baranovskiy) Abstracted API. FakeSmile by David Leunen Canvas Web Storage (LocalStorage and SessionStorage) Non HTML5 API Solutions ssw by Matthias Schäfer$.store by Rodney Rehmlawnchair by Brian Lerouxstore.js by Marcus WestinPersistJS by Paul DuncanSquirrel.js by Aaron GustafsonjStorage by Andris Reinman Video

CSS Sprites: What They Are, Why They're Cool, and How To Use Them By Chris Coyier On This article has been revised and re-written several times since its very first publication in 2007, to keep the information current. The most recent revision was done by Flip Stewart in January 2015. #What are CSS Sprites? Spoiler alert: they aren't fairies that write your stylesheets for you. To summarize: the term "sprites" comes from a technique in computer graphics, most often used in video games. CSS Sprites is pretty much the exact same theory: get the image once, and shift it around and only display parts of it. #Why use CSS Sprites? It may seem counterintuitive to cram smaller images into a larger image. Let's look at some numbers on an actual example: That adds up to a total of 14.38KB to load the three images. While the total image size (sometimes) goes up with sprites, several images are loaded with a single HTTP request. Thus, sprites are important for the same reasons that minifying and concatinating CSS and JavaScript are important. $ npm install sprity -g

An Introduction To CSS3 Keyframe Animations Advertisement By now you’ve probably heard at least something about animation in CSS3 using keyframe-based syntax. The CSS3 animations module1 in the specification has been around for a couple of years now, and it has the potential to become a big part of Web design. Using CSS3 keyframe animations, developers can create smooth, maintainable animations that perform relatively well and that don’t require reams of scripting. It’s just another way that CSS3 is helping to solve a real-world problem in an elegant manner. If you haven’t yet started learning the syntax for CSS3 animations, here’s your chance to prepare for when this part of the CSS3 spec moves past the working draft2 stage. In this article, we’ll cover all the important parts of the syntax, and we’ll fill you in on browser support so that you’ll know when to start using it. A Simple Animated Landscape Scene (NOTE: Versions of Safari prior to 5.1 have a bug that prevents the animation from finishing correctly. The @keyframes At-Rule