JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://fancyapps.com/fancybox/source/jquery.fancybox.css">
<script src="http://fancyapps.com/fancybox/source/jquery.fancybox.js"></script>
<a title="morning after[explored] (mariosworld343)" href="http://farm8.staticflickr.com/7069/7060779347_fbee5aae15_b.jpg" rel="group-001"><img src="http://farm8.staticflickr.com/7069/7060779347_fbee5aae15_m.jpg"></a>

<a title="Self confined... (TVidhya)" href="http://farm8.staticflickr.com/7234/7047458501_46a2203733_b.jpg" rel="group-001"><img src="http://farm8.staticflickr.com/7234/7047458501_46a2203733_m.jpg"></a>

<a title="kleiner schrittmacher (KatjaGiersig)" href="http://farm8.staticflickr.com/7053/6918451990_20fa76f338_b.jpg" rel="group-001"><img src="http://farm8.staticflickr.com/7053/6918451990_20fa76f338_m.jpg"></a>

<a title=" (caro diario.)" href="http://farm8.staticflickr.com/7121/7059981833_abe404f4a0_b.jpg" rel="group-001"><img src="http://farm8.staticflickr.com/7121/7059981833_abe404f4a0_m.jpg"></a>

JavaScript

$("a[href$='.jpg'],a[href$='.png'],a[href$='.gif']").attr('rel', 'gallery').fancybox();