Animating with GSAP JS
http://www.greensock.com/get-started-js
by joepenzo
HTML
<script src="http://cdnjs.cloudflare.com/ajax/libs/gsap/1.11.1/TweenMax.min.js"></script>
<div class="bg"></div>
CSS
.bg {
width:100%;
height:100%;
background: #c0ffee;
display: block;
position: absolute;
}
JavaScript
TweenLite.to(".bg", 10,{
marginLeft:400,
width:64,
ease:Linear.easeNone,
opacity:0
});