<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 style="margin-top: 50px;margin-bottom: 50px;" class="container">
<h4 class="text-muted"><i>Made for hipsters by <a href="http://www.twitter.com/RodyMolenaar">@RodyMolenaar</a></i></h4>
<br />
<br />
<div class="row">
<div class="col-md-4">
<p>
<button type="button" class="btn btn-primary btn-lg">Large button</button>
<button type="button" class="btn btn-default btn-lg">Large button</button>
</p>
<p>
<button type="button" class="btn btn-primary">Default button</button>
<button type="button" class="btn btn-default">Default button</button>
</p>
<p>
<button type="button" class="btn btn-primary btn-sm">Small button</button>
<button type="button" class="btn btn-default btn-sm">Small button</button>
</p>
<p>
<button type="button" class="btn btn-primary btn-xs">Extra small button</button>
<button type="button" class="btn btn-default btn-xs">Extra small button</button>
</p>
</div>
<div class="col-md-4">
<p>
<button type="button" class="btn btn-primary btn-round-lg btn-lg">Large button</button>
<button type="button" class="btn btn-default btn-round-lg btn-lg">Large button</button>
</p>
<p>
<button type="button" class="btn btn-primary btn-round">Default button</button>
<button type="button" class="btn btn-default btn-round">Default button</button>