<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>
<nav class="navbar-default">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar-menu">
<i class="fa fa-bars"></i>
</button>
</div>
<div class="collapse navbar-collapse" id="navbar-menu">
<ul class="nav navbar-nav mobile-menu">
<li> <a href="#!">Home</a> <span class="has-dropdown"></span>
<ul class="dropdown-menu">
<li> <a href="#">Home Page 1</a> </li>
<li> <a href="#">Home Page 2</a> </li>
<li> <a href="#">Home Page 3</a> </li>
<li> <a href="#">Home Page 4</a> </li>
<li> <a href="#">Home Page 5</a> </li>
</ul>
</li>
<li> <a href="#!">About us</a> <span class="has-dropdown"></span>
<ul class="dropdown-menu">
<li> <a href="#">About</a> </li>
<li> <a href="#">About 2</a> </li>
<li> <a href="#">About 3</a> </li>
<li> <a href="#">history</a> </li>
<li> <a href="#">career</a> </li>
<li> <a href="#">partnerships</a> </li>
<li> <a href="#">leadership</a> </li>
</ul>
</li>
<li> <a href="javascript:avoid(0);">services</a> <span class="has-dropdown"></span>
<ul class="dropdown-menu">
<li>
<a href="#">Services</a>