-<link href="https://bootswatch.com/3/darkly/bootstrap.min.css" rel="stylesheet">
-<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/1.11.3/jquery.min.js"></script>
-<script src="https://cdnjs.cloudflare.com/ajax/libs/twitter-bootstrap/3.3.5/js/bootstrap.min.js"></script>
-<style type="text/css">
-footer {background-color: #111 !important;}
-pre {background-color: #111; color: #ccc;}
-</style>