<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="/css/bootstrap/bootstrap3.3.7.min.css">
<p>Th-list icon: <span class="glyphicon glyphicon-th-list"></span></p>
<p>Th-list icon as a link:
<span class="glyphicon glyphicon-th-list"></span>
<p>Th-list icon on a button:
<button type="button" class="btn btn-default btn-sm">
<span class="glyphicon glyphicon-th-list"></span> Th-list
<p>Th-list icon on a styled link button:
<a href="#" class="btn btn-info btn-lg">