<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 bs-nopadding text-center">
<h3>Just copy CSS and add class "bs-nopadding" in "container" div</h3>
<div class="row" style="color:#fff">
<div style="background:#990134" class="col-sm-3">column 1</div>
<div style="background:#63102c" class="col-sm-3">column 2</div>
<div style="background:#431625" class="col-sm-3">column 3</div>
<div style="background:#241319" class="col-sm-3">column 4</div>
</div>
</div>
