<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>Create your snippet's HTML, CSS and Javascript in the editor tabs</h2> </div> <a href="#myModal" data-toggle="modal" data-target="#myModal" >Video Popup</a> <!-- The Modal --> <div class="modal fade" id="myModal"> <div class="modal-dialog"> <div class="modal-content"> <!-- Modal Header --> <div class="modal-header"><button type="button" class="close" data-dismiss="modal">×</button> </div> <!-- Modal body --> <div class="modal-body"> <iframe width="100% height="480" src="https://www.youtube.com/embed/Y2s898jySf4" title="YouTube video player" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe> </div> </div> </div> </div> </div> </div>