Animation the CSS3 way with Animate.css

Animate.css adds CSS3 animation without the headache of managing cross-browser styles. Grab the whole stylesheet or pick and choose using the handy build tool.

From the docs:

animate.css is a bunch of cool, fun, and cross-browser animations for you to use in your projects. Great for emphasis, home pages, sliders, and general just-add-water-awesomeness.

MIT Licensed. Source code on Github.