<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>
<div class="container">
<div class="row">
<ul class="nav nav-pills" id="signup-in-form">
<li role="presentation" class="active"><a href="#" id="client">Client</a></li>
<li role="presentation"><a href="#" id="consultant">Consultant</a></li>
</ul>
<p>documentation available here: <a href="http://getbootstrap.com/javascript/#tabs">http://getbootstrap.com/javascript/#tabs</a></p>
</div>
</div>