Include this code in the head-tag
<link rel="stylesheet" href="//www.liu.se/mallar/o365bs/headonly.css" type="text/css"/>
<script type="text/javascript" src="//www.liu.se/mallar/jquery/jquery.min.js"></script>
<script type="text/javascript" src="//www.liu.se/mallar/o365bs/o365.js"></script>
Note: jQuery is needed but if you already have loaded it, don't load it again.