1 <!--[if (gte IE 6)&(lte IE 8)]> 2 <script type="text/javascript" src="js/nwmatcher.min.js"></script> 3 <script type="text/javascript" src="js/selectivizr.js"></script> 4 <noscript><link rel="stylesheet" href="css/font-awesome.min.css" /></noscript> 5 <![endif]--> 6 <link rel="stylesheet" href="css/font-awesome.min.css"/> 7 <link rel="stylesheet" href="css/font-awesome-ie7.min.css"/>
e.g.
<i class="icon-check icon-4x"></i>