<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 ---------->
<div class="container">
<div class="row">
<h3>Centered Processing Modal <br /><small>Create a simpler, auto-centered modal to tell the user something is processing and block their input!</small></h3>
<p><code>NOTE: The 'X' button in the modal is provided for testing purposes only, and can be removed to make the modal uninterruptable.</code></p>
<br />
<button class="btn btn-primary btn-lg" data-toggle="modal" data-target="#processing-modal">
<i class="glyphicon glyphicon-play"></i> Start Processing
</button>
</div>
</div>
<!-- Static Modal -->
<div class="modal modal-static fade" id="processing-modal" role="dialog" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-body">
<div class="text-center">
<img src="http://www.travislayne.com/images/loading.gif" class="icon" />
<h4>Processing... <button type="button" class="close" style="float: none;" data-dismiss="modal" aria-hidden="true">×</button></h4>
</div>
</div>
</div>
</div>
</div>