<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>
<!------ Include the above in your HEAD tag ---------->
<div class="container bg-overlay">
<div class="row text-center">
<h1>This is a beautiful background image<br> with a transparent overlay.</h1>
<h4>You can just use the "<strong>.bg-overlay</strong>" class on any container/element,<br>
and specify the image you want to use and its height.</h4>
<br><br>
<button type="button" class="btn btn-primary btn-lg">Get Started</button>
</div>
</div>
<br><br>
<div class="container bg-no-overlay">
<div class="row text-center">
<h1>This is a background image<br> with NO overlay.</h1>
<br><br>
<button type="button" class="btn btn-primary btn-lg">Get Started</button>
</div>
</div>
