<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="w3-container w3-teal"> <h1>My Header</h1> </div> <img src="img_car.jpg" alt="Car"> <div class="w3-container"> <p>A car is a wheeled, self-powered motor vehicle used for transportation.</p> </div> <div class="w3-container w3-teal"> <p>My Footer</p> </div>