<link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<nav class="navbar navbar-fixed-top navbar-default">
<div class="container">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed pull-left" data-toggle="collapse" data-target="#example-left" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#example-right" aria-expanded="false">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Brand</a>
</div>
<div class="collapse navbar-collapse" data-parent="#accordion" id="example-left">
<ul class="nav navbar-nav">
<li><a href="#">Left 1</a></li>
<li><a href="#">Left 1</a></li>
</ul>
</div>
<div class="collapse navbar-collapse navbar-right" data-parent="#accordion" id="example-right">
<ul class="nav navbar-nav">
<li><a href="#">Right 1</a></li>
<li><a href="#">Right 2</a></li>
</ul>
