<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>
<p>http://codepen.io/devstreak/pen/dMYgeO</p>
<div id="wrapper">
<div class="scrollbar" id="style-default">
<div class="force-overflow"></div>
</div>
<div class="scrollbar" id="style-1">
<div class="force-overflow"></div>
</div>
<div class="scrollbar" id="style-2">
<div class="force-overflow"></div>
</div>
<div class="scrollbar" id="style-3">
<div class="force-overflow"></div>
</div>
<div class="scrollbar" id="style-4">
<div class="force-overflow"></div>
</div>
<div class="scrollbar" id="style-5">
<div class="force-overflow"></div>
</div>
<div class="scrollbar" id="style-6">
<div class="force-overflow"></div>
</div>
<div class="scrollbar" id="style-7">
<div class="force-overflow"></div>