Recent Features
![Create a CSS Flipping Animation]()
Create a CSS Flipping Animation
CSS animations are a lot of fun; the beauty of them is that through many simple properties, you can create anything from an elegant fade in to a WTF-Pixar-would-be-proud effect. One CSS effect somewhere in between is the CSS flip effect, whereby there's...
![39 Shirts – Leaving Mozilla]()
39 Shirts – Leaving Mozilla
In 2001 I had just graduated from a small town high school and headed off to a small town college. I found myself in the quaint computer lab where the substandard computers featured two browsers: Internet Explorer and Mozilla. It was this lab where I fell...
Incredible Demos
![Simple Image Lazy Load and Fade]()
Simple Image Lazy Load and Fade
One of the quickest and easiest website performance optimizations is decreasing image loading. That means a variety of things, including minifying images with tools like ImageOptim and TinyPNG, using data URIs and sprites, and lazy loading images. It's a bit jarring when you're lazy loading images and they just...
![afterscriptexecute Event]()
afterscriptexecute Event
Fellow Mozillian Daniel Buchner, curator of the X-Tag project and clever developer who showed us how to detect dom node insertions using CSS animations, recently showed me a new JavaScript feature I'd never heard of: the
SCRIPTelement's afterscriptexecute event.




