CSS3 transitions are easy to implement, more performant than the setTimeout based alternative & because of this work really well on mobile devices. However, it is not as flexible as the Javascript alternatives is easing functions.

Libraries such as jQuery & Scripty2 have a suite of really compelling functions that just aren’t available with CSS transitions. So, here we have Morf, a Javascript work-around for hardware accelerated CSS3 transitions with custom easing functions.

Requirements: -
Demo: http://www.joelambert.co.uk/morf/
License: MIT License