<!DOCTYPE html>
<html>
<head>
<title>Font Awesome Icons</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" href="../../maxcdn.bootstrapcdn.com/bootstrap/3.3.5/css/bootstrap.min.css">
<link rel="stylesheet" href="../../cdnjs.cloudflare.com/ajax/libs/font-awesome/4.4.0/css/font-awesome.min.css">
</head>
<body>
<p>With fixed width:</p>
<div class="list-group">
<a href="#" class="list-group-item"><i class="fa fa-home fa-fw"></i> Home</a>
<a href="#" class="list-group-item"><i class="fa fa-book fa-fw"></i> Library</a>
<a href="#" class="list-group-item"><i class="fa fa-pencil fa-fw"></i> Applications</a>
<a href="#" class="list-group-item"><i class="fa fa-cog fa-fw"></i> Settings</a>
</div>
<p>Without fixed width:</p>
<div class="list-group">
<a href="#" class="list-group-item"><i class="fa fa-home"></i> Home</a>
<a href="#" class="list-group-item"><i class="fa fa-book"></i> Library</a>
<a href="#" class="list-group-item"><i class="fa fa-pencil"></i> Applications</a>
<a href="#" class="list-group-item"><i class="fa fa-cog"></i> Settings</a>
</div>
</body>
</html>