<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> <!------ Include the above in your HEAD tag ----------> <div class="container-fluid"> <div class="row"> <div class="col-md-4 col-xs-4" id="lists"> <h1>My Lists</h1> </div> <div clas="col-md-8 col-xs-4" id="main"> <h1>List Name</h1> </div> </div> </div>

html, body, .container-fluid, .row, #lists { height: 100%; } #lists { background-color: #ccc; } h1 { text-transform: uppercase; border-bottom: 1px solid #aaa; }