JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://www.snorkl.tv/dev/libs/greensock/TweenMax.min.js"></script>
<div class="box" id="box1"></div>

CSS

.box{
    position:relative;
    width:50px;
    height:50px;
    background-color:#f60;
    margin:6px;
    border:5px solid #669933;
}

.transparent{
    background-color:transparent;
}

JavaScript

var box = $('#box1');
/*TweenLite.to(box, 1, {css:{left:400, borderColor:'#669933'}});*/

box.hover(
   function()
   {
       TweenLite.to(box, 1, {css:{className:'+=transparent'}});
   },
   function()
    {
       TweenLite.to(box, 1, {css:{className:'-=transparent'}});
    });