Anielgg is a Elgg implementation of Anijs and Aninated.css, with Anielgg you can use all Animated.css animations on any element of your site, just using the Admin panel. You can use the intuitive Anijs commands. You can use these commands with your own animations too. Now the sky is the limit! Example:

if: click, on: #div1, do: bounce animated, on: #div2, after: removeAnim;

If you want to know all you can do with this plugin, you can see the Anijs documentation and Animated.css DOC.