A new website helps web developers decipher the often confusing world of HTML5 and CSS 3. Which elements are ready to use? Which are still not widely supported? And where can you find polyfills ...

Pure CSS3 AT-AT: This is a simple example of animation created by Anothony Calzadilla without a single line of programing code (no JavaScript, ActionScript, Java, Objective C or whatever).

This graphic isn’t just beautiful; it charts out every major browser’s compatibility with elements of HTML5 and CSS3. In a nutshell, things look pretty good. For the fully interactive version ...

Ryan Boudreaux includes all the code snippets you'll need in this demo of how to create an image hover-preview effect using HTML, CSS, and JavaScript.