JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://fancyapps.com/fancybox/source/jquery.fancybox.js"></script>
<link rel="stylesheet" href="http://fancyapps.com/fancybox/source/jquery.fancybox.css">
<a class="open_fancybox" href="http://fancyapps.com/fancybox/demo/1_b.jpg"><img src="http://fancyapps.com/fancybox/demo/1_s.jpg" alt=""/></a>

<a class="open_fancybox" href="http://fancyapps.com/fancybox/demo/4_b.jpg"><img src="http://fancyapps.com/fancybox/demo/4_s.jpg" alt=""/></a>

JavaScript

var images = {
    1: [
        {
            href : 'http://fancyapps.com/fancybox/demo/1_b.jpg',                
            title : 'Gallery 1 - 1'
        },
        {
            href : 'http://fancyapps.com/fancybox/demo/2_b.jpg',                
            title : 'Gallery 1 - 2'
        },
        {
            href : 'http://fancyapps.com/fancybox/demo/3_b.jpg',                
            title : 'Gallery 1 - 3'
        }
    ],
    2: [
        {
            href : 'http://fancyapps.com/fancybox/demo/4_b.jpg',                
            title : 'Gallery 2 - 1'
        },
        {
            href : 'http://fancyapps.com/fancybox/demo/5_b.jpg',                
            title : 'Gallery 2 - 2'
        }
    ]
};

$(".open_fancybox").click(function() {
    $.fancybox.open(images[ $(this).index() + 1], {
        padding : 0
    });
    
    return false;
});