<link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/magnific-popup.js/1.1.0/magnific-popup.css">
<script src="https://cdnjs.cloudflare.com/ajax/libs/magnific-popup.js/1.1.0/jquery.magnific-popup.min.js"></script>
<a class="specialLink popup-viewregister" href="#t">Open modal</a>
<div id="test-modal" class="mfp-hide white-popup-block">
<h1>Modal dialog</h1>
<p>You won't be able to dismiss this by usual means (escape or
click button), but you can close it programatically based on
user choices or actions.</p>
<p><a class="popup-modal-dismiss" href="#">Dismiss</a></p>
</div>