<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<div class="container">
<div class="row">
<ul class="list-unstyled">
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Some Dropdown<b class="caret"></b></a>
<ul class="dropdown-menu">
<li><a href="#"><i class="glyphicon glyphicon-arrow-up"></i> Up</a></li>
<li><a href="#"><i class="glyphicon glyphicon-arrow-down"></i> Down</a></li>
<li><a href="#"><i class="glyphicon glyphicon-arrow-left"></i> Left</a></li>
<li><a href="#"><i class="glyphicon glyphicon-arrow-right"></i> Right</a></li>
</ul>
</li>
</ul>
</div>
</div>
