<link href="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/css/bootstrap.min.css" rel="stylesheet" id="bootstrap-css">
<script src="//maxcdn.bootstrapcdn.com/bootstrap/4.1.1/js/bootstrap.min.js"></script>
<script src="//code.jquery.com/jquery-1.11.1.min.js"></script>
<div id="myModal" class="modal fade" data-backdrop="static" data-keyboard="false" tabindex="-1" role="dialog" aria-hidden="true" style="padding-top:15%; overflow-y:visible;">
<div class="modal-dialog modal-sm">
<div class="modal-content">
<div class="modal-header">
<h3 style="margin:0;">
Messages
</h3>
</div>
<div class="modal-body">
<div class="progress progress-striped active" style="margin-bottom:0;">
<div class="progress-bar progress-bar-success" style="width: 100%">
</div>
</div>
</div>
</div>
</div>
</div>