JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://blueimp.github.io/Gallery/css/blueimp-gallery-video.css">
<link rel="stylesheet" href="http://blueimp.github.io/Gallery/css/blueimp-gallery-indicator.css">
<link rel="stylesheet" href="http://blueimp.github.io/Gallery/css/blueimp-gallery.css">
<script src="http://blueimp.github.io/Gallery/js/blueimp-gallery.js"></script>
<!--
<script src="http://blueimp.github.io/Gallery/js/blueimp-helper.js"></script>
<script src="http://blueimp.github.io/Gallery/js/blueimp-gallery-fullscreen.js"></script>

<script src="http://blueimp.github.io/Gallery/js/blueimp-gallery-indicator.js"></script>
<script src="http://blueimp.github.io/Gallery/js/blueimp-gallery-video.js"></script>
<script src="http://blueimp.github.io/Gallery/js/blueimp-gallery-vimeo.js"></script>

<script src="http://blueimp.github.io/Gallery/js/jquery.blueimp-gallery.js"></script>
-->

<script src="http://blueimp.github.io/Gallery/js/blueimp-gallery-youtube.js"></script>




<div id="gallery">
	<!-- main image -->
	<ul class="thumbnails">
		<li class="span12 margin-bottom-0">
	    	<a class="thumbnail center-all" href="http://i.imgur.com/mdqQTPT.jpg" style="max-height: 375px; width: 375px;" data-gallery>
				<img src="http://i.imgur.com/mdqQTPT.jpg" class="main-image">
	    	</a>
		</li>
	</ul>
	<!-- other images / video -->
	<ul class="thumbnails">	
		<li class="span6">
	    	<a class="thumbnail center-all" href="https://www.youtube.com/watch?v=zv9jHNwaV2E"  style="height: 185px; width: 185px;">
	    		<img src="http://i.imgur.com/mdqQTPT.jpg" class="additional-image">
	    	</a>
		</li>				
	</ul>
</div>
        
<div id="blueimp-gallery" class="blueimp-gallery blueimp-gallery-controls">
    <div class="slides"></div>
    <h3 class="title"></h3>
    <a class="prev">‹</a>
    <a class="next">›</a>
    <a class="close">×</a>
    <a class="play-pause"></a>
    <ol class="indicator"></ol>
</div>

<script>
document.getElementById('gallery').onclick = function (event) {
    event =...