Building on top of the hardware accelerated css transitions, animations and transforms in WebKit.
x$('#fx-button').click(function(e){
x$('#fx').tween([
{
background:'red',
by:[600,0], // X,Y
duration:2.5
},
{
background:'blue',
bottom:'0px',
by:[0,0], // X,Y
duration:.5
}
]);
});