<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="//cdnjs.cloudflare.com/ajax/libs/jquery/3.2.1/jquery.min.js"></script>
<!------ Include the above in your HEAD tag ---------->
<div class="container">
<div class="row">
<h2>Air Conditioning Services</h2>
</div>
<p>of an air conditioner is not an easy task. For this, you need a highly skilled person and BTU-Group provides experienced engineers for <a href="http://www.btu-group.com/air-conditioning">air conditioning services</a>. For more information, you can visit the BTU-Group website.
</p>
</div>