JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css">
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<div class="big"></div>

CSS

div {
    width: 100px;
    height: 100px;
    background-color: #ccc;
  }
  .big {
    width: 200px;
    height: 200px;
  }
  .blue {
    background-color: #00f;
  }

JavaScript

$( "div" ).click(function() {
  $( this ).switchClass( "big", "blue", 1000, "easeInOutQuad" );
});