<link href="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/css/bootstrap-combined.min.css" rel="stylesheet" id="bootstrap-css"> <script src="//netdna.bootstrapcdn.com/twitter-bootstrap/2.3.2/js/bootstrap.min.js"></script> <script src="//code.jquery.com/jquery-1.11.1.min.js"></script> <!------ Include the above in your HEAD tag ----------> <div class="container"> <div class="row"> <div class="well" style="width:300px; padding: 8px 0;"> <div style="overflow-y: scroll; overflow-x: hidden; height: 500px;"> <ul class="nav nav-list"> <li><label class="tree-toggler nav-header">Header 1</label> <ul class="nav nav-list tree"> <li><a href="#">Link</a></li> <li><a href="#">Link</a></li> <li><label class="tree-toggler nav-header">Header 1.1</label> <ul class="nav nav-list tree"> <li><a href="#">Link</a></li> <li><a href="#">Link</a></li> <li><label class="tree-toggler nav-header">Header 1.1.1</label> <ul class="nav nav-list tree"> <li><a href="#">Link</a></li> <li><a href="#">Link</a></li> </ul> </li> </ul> </li> </ul> </li> <li class="divider"></li> <li><label class="tree-toggler nav-header">Header 2</label> <ul class="nav nav-list tree"> <li><a href="#">Link</a></li> <li><a href="#">Link</a></li> <li><label class="tree-toggler nav-header">Header 2.1</label> <ul class="nav nav-list tree"> <li><a href="#">Link</a></li> <li><a href="#">Link</a></li> <li><label class="tree-toggler nav-header">Header 2.1.1</label> <ul class="nav nav-list tree"> <li><a href="#">Link</a></li> <li><a href="#">Link</a></li> </ul> </li> </ul> </li> <li><label class="tree-toggler nav-header">Header 2.2</label> <ul class="nav nav-list tree"> <li><a href="#">Link</a></li> <li><a href="#">Link</a></li> <li><label class="tree-toggler nav-header">Header 2.2.1</label> <ul class="nav nav-list tree"> <li><a href="#">Link</a></li> <li><a href="#">Link</a></li> </ul> </li> </ul> </li> </ul> </li> </ul> </div> </div> </div> </div>

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