<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<style>
.select-font{
display: block;
font-family: 'Glyphicons Halflings';
font-size:24px;
height: 20px;
width: 20px;
}
.seticon:before{
content: "\e139";
}
</style>
<div class="container">
<h1 class="page-header">icons</h1>
<h4>icon by class name</h4>
<span class="glyphicon glyphicon-user"></span>
<h4>icon using content property</h4>
<span class='select-font seticon'></span>
<h4>icon using utf-8 charecter code</h4>
<span class='select-font'></span>
<h1 class="page-header">list of class, style and unicode code</h1>
<ul>
<h3>class, style and unicode for icon</h3>
<li>
<span class="glyphicon glyphicon-asterisk"></span>