<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>
<!------ Include the above in your HEAD tag ---------->
<!-- http://www.jquery2dotnet.com -->
<div class="container">
<div class="row">
<div class="col-sm-6 col-md-6">
<div class="alert alert-success">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">
×</button>
<span class="glyphicon glyphicon-ok"></span> <strong>Success Message</strong>
<hr class="message-inner-separator">
<p>
You successfully read this important alert message.</p>
</div>
</div>
<div class="col-sm-6 col-md-6">
<div class="alert alert-info">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">
×</button>
<span class="glyphicon glyphicon-info-sign"></span> <strong>Info Message</strong>
<hr class="message-inner-separator">
<p>
This alert needs your attention, but it's not super important.</p>
</div>
</div>
<div class="col-sm-6 col-md-6">
<div class="alert alert-warning">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">
×</button>
<span class="glyphicon glyphicon-record"></span> <strong>Warning Message</strong>
<hr class="message-inner-separator">
<p>
Best check yo self, you're not looking too good.</p>
</div>
</div>
<div class="col-sm-6 col-md-6">
<div class="alert alert-danger">
<button type="button" class="close" data-dismiss="alert" aria-hidden="true">
×</button>
<span class="glyphicon glyphicon-hand-right"></span> <strong>Danger Message</strong>
<hr class="message-inner-separator">
<p>
Change a few things up and try submitting again.</p>
</div>
</div>
</div>
</div>
body { margin-top:30px; }
hr.message-inner-separator
{
clear: both;
margin-top: 10px;
margin-bottom: 13px;
border: 0;
height: 1px;
background-image: -webkit-linear-gradient(left,rgba(0, 0, 0, 0),rgba(0, 0, 0, 0.15),rgba(0, 0, 0, 0));
background-image: -moz-linear-gradient(left,rgba(0,0,0,0),rgba(0,0,0,0.15),rgba(0,0,0,0));
background-image: -ms-linear-gradient(left,rgba(0,0,0,0),rgba(0,0,0,0.15),rgba(0,0,0,0));
background-image: -o-linear-gradient(left,rgba(0,0,0,0),rgba(0,0,0,0.15),rgba(0,0,0,0));
}