<link href="//netdna.bootstrapcdn.com/bootstrap/3.2.0/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.2.0/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<div class="container">
<div class="row" style="padding-top:50px">
<div class="col-xs-12 col-sm-12 col-md-6 col-lg-6 text-center">
<div class="list-group list-group-horizontal">
<a href="#" class="list-group-item active">Item One</a>
<a href="#" class="list-group-item">Item Two</a>
<a href="#" class="list-group-item">Item Three</a>
<a href="#" class="list-group-item">Item Four</a>
</div>
</div>
</div>
</div>