<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>
<script type="text/javascript" src="//cdnjs.cloudflare.com/ajax/libs/holder/2.4.1/holder.js"></script>
<div style="padding: 20px 20% 0 20%; background-color: mediumorchid;">
<div class="chat_list">
<ul class="list-group">
<li class="list-group-item">
<div class="pull-left hidden-xs">
<div>
<img class="img-circle" title="User1" alt="User1" data-src="holder.js/40x40/lava">
</div>
</div>
<small class="pull-right text-muted">10.12.2014 in 12:56</small>
<div>
<small class="list-group-item-heading text-muted text-primary">User1</small>
<p class="list-group-item-text">
Hi! this message is FOR you.
</p>
</div>
</li>
<li class="list-group-item">
<div class="pull-left hidden-xs">
<div>
<img class="img-circle" title="You" alt="You" data-src="holder.js/40x40/industrial">
</div>
</div>
<small class="pull-right text-muted">10.12.2014 in 12:57</small>
<div>
<small class="list-group-item-heading text-muted">You</small>
<p class="list-group-item-text">
This response message FROM you.
</p>
</div>
</li>