<link href="//netdna.bootstrapcdn.com/bootstrap/3.0.3/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//netdna.bootstrapcdn.com/bootstrap/3.0.3/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<br>
<div class="container well well-sm">
<center>
<div class="row">
<img src="http://lorempixel.com/output/abstract-h-c-147-153-8.jpg" width="140" height="140" border="0" class="img-circle">
<img src="http://lorempixel.com/output/abstract-h-c-147-153-1.jpg" width="140" height="140" border="0" class="img-circle">
<img src="http://lorempixel.com/output/abstract-h-c-147-153-7.jpg" width="140" height="140" border="0" class="img-circle">
<img src="http://lorempixel.com/output/abstract-h-c-147-153-3.jpg" width="140" height="140" border="0" class="img-circle">
</div>
<p></p>
<div class="row">
<img src="http://lorempixel.com/output/transport-h-c-147-153-1.jpg" width="140" height="140" border="0" class="img-circle">
<img src="http://lorempixel.com/output/transport-h-c-147-153-7.jpg" width="140" height="140" border="0" class="img-circle">
<img src="http://lorempixel.com/output/transport-h-c-147-153-9.jpg" width="140" height="140" border="0" class="img-circle">
<img src="http://lorempixel.com/output/transport-h-c-147-153-10.jpg" width="140" height="140" border="0" class="img-circle">
<p></p>
</div>
<div class="row">
<img src="http://lorempixel.com/output/nature-h-c-147-153-8.jpg" width="140" height="140" border="0" class="img-circle">
<img src="http://lorempixel.com/output/nature-h-c-147-153-7.jpg" width="140" height="140" border="0" class="img-circle">
<img src="http://lorempixel.com/output/nature-h-c-147-153-4.jpg" width="140" height="140" border="0" class="img-circle">
<img src="http://lorempixel.com/output/nature-h-c-147-153-10.jpg" width="140" height="140" border="0" class="img-circle">
</div>
</center>
</div>