<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"> <div class="row"> <h2>Horizontal lifeline</h2> If you want safety while working on the roof, then you can install a roof <a href="https://caisafety.com/roof-horizontal-lifeline">horizontal lifeline</a> system from CAISafety. We offer roof safety protection systems that protect your working environment. </div> </div>