CSS3 Keyframe Animations Demo
This page is a demo that copies some of the animated elements from 84Colors. The original site uses Flash animation for these effects. I've recreated them using CSS3 animations.
For an introduction to CSS3 keyframe animations, see my article on Smashing Magazine or this screencast by Chris Coyier.
This demo works best in Chrome 4+, Safari 4+, and Firefox 5+.