<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>
<div class="container">
<h1 class="page-header">Grid Columns</h1>
<h4>Two Columns</h4>
<div class="row">
<div class="col-md-4">.col-md-4</div>
<div class="col-md-8">.col-md-8</div>
</div>
<h4>Three Columns <span>(reset width on responsive)</span></h4>
<div class="row">
<div class="col-md-4">.col-md-4</div>
<div class="col-md-4">.col-md-4</div>
<div class="col-md-4">.col-md-4</div>
</div>
<h4>Three Columns <span>(no reset on responsive)</span></h4>
<div class="row">
<div class="col-xs-4 col-md-4">.col-xs-4 .col-md-4</div>
<div class="col-xs-4 col-md-4">.col-xs-4 .col-md-4</div>
<div class="col-xs-4 col-md-4">.col-xs-4 .col-md-4</div>
</div>
<h4>·</h4>
</div>
<style>
h4{ margin-top:50px; }
h4 span{ font-size:13px; color:grey; }
[class^="col-"] {
background-color: #eee;
border: 1px solid #ddd;
