JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://fancyapps.com/fancybox/source/jquery.fancybox.js"></script>
<script src="http://fancyapps.com/fancybox/source/helpers/jquery.fancybox-thumbs.js"></script>
<link rel="stylesheet" href="http://fancyapps.com/fancybox/source/helpers/jquery.fancybox-thumbs.css">
<a caption="<h2>Image Header</h2><p>Lorem ipsum dolor sit amet, consetetur sadipscing elitr, sed diam nonumy eirmod tempor invidunt ut labore et dolore magna aliquyam erat, sed diam voluptua.</p>" rel="Sold" class="fancybox" data-fancybox-group="thumb1" href="http://fancyapps.com/fancybox/demo/4_b.jpg"><img src="http://fancyapps.com/fancybox/demo/4_s.jpg" alt="" /></a>

        <a class="fancybox hidden" data-fancybox-group="thumb1" href="http://fancyapps.com/fancybox/demo/3_b.jpg"><img src="http://fancyapps.com/fancybox/demo/3_s.jpg" alt="" /></a>

        <a class="fancybox" data-fancybox-group="thumb2" href="http://fancyapps.com/fancybox/demo/2_b.jpg"><img src="http://fancyapps.com/fancybox/demo/2_s.jpg" alt="" /></a>

        <a class="fancybox hidden" data-fancybox-group="thumb2" href="http://fancyapps.com/fancybox/demo/1_b.jpg"><img src="http://fancyapps.com/fancybox/demo/1_s.jpg" alt="" /></a>

CSS

/*! fancyBox v2.1.5 fancyapps.com | fancyapps.com/fancybox/#license */
.fancybox-wrap,
.fancybox-skin,
.fancybox-outer,
.fancybox-inner,
.fancybox-image,
.fancybox-wrap iframe,
.fancybox-wrap object,
.fancybox-nav,
.fancybox-nav span,
.fancybox-tmp
{
	padding: 0;
	margin: 0;
	border: 0;
	outline: none;
	vertical-align: top;
}

.fancybox-wrap {
	position: absolute;
	top: 0;
	left: 0;
	z-index: 8020;
}

.fancybox-skin {
	position: relative;
	background: #f9f9f9;
	color: #444;
	text-shadow: none;
	-webkit-border-radius: 4px;
	   -moz-border-radius: 4px;
	        border-radius: 4px;
}

.fancybox-opened {
	z-index: 8030;
}

.fancybox-opened .fancybox-skin {
	-webkit-box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
	   -moz-box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
	        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.5);
}

.fancybox-outer, .fancybox-inner {
	position: relative;
}

.fancybox-inner {
	overflow: hidden;
}

.fancybox-type-iframe .fancybox-inner {
	-webkit-overflow-scrolling: touch;
}

.fancybox-error {
	color: #444;
	font: 14px/20px "Helvetica Neue",Helvetica,Arial,sans-serif;
	margin: 0;
	padding: 15px;
	white-space: nowrap;
}

.fancybox-image, .fancybox-iframe {
	display: block;
	width: 100%;
	height: 100%;
    
}

.fancybox-image {
	max-width: 100%;
	max-height: 100%;
    
}

#fancybox-loading, .fancybox-close, .fancybox-prev span, .fancybox-next span {
	background-image: url('fancybox_sprite.png');
}

#fancybox-loading {
	position: fixed;
	top: 50%;
	left: 50%;
	margin-top: -22px;
	margin-left: -22px;
	background-position: 0 -108px;
	opacity: 0.8;
	cursor: pointer;
	z-index: 8060;
}

#fancybox-loading div {
	width: 44px;
	height: 44px;
	background: url('fancybox_loading.gif') center center no-repeat;
}

.fancybox-close {
	position: absolute;
	top: -18px;
	right: -18px;
	width: 36px;
	height: 36px;
	cursor: pointer;
	z-index: 8040;
}

.fancybox-nav {
	position: absolute;
	top: 0;
	width: 30%;
	height: 100%;
	cursor: pointer;
	text-decoration:...

JavaScript

$('.fancybox').fancybox({
fitToView: false,
                
                prevEffect : 'fade',
                nextEffect : 'fade',
               padding:0,

                closeBtn  : true,
                arrows    : true,
                nextClick : false,    
 beforeShow: function () {
        // set size to (fancybox) img
        $(".fancybox-image").css({
            "width": 900,
            "height": 600
        });
        // set size for parent container
        this.width = 900;
        this.height = 600;
    },
                
                 
  

               helpers : { 
    title : { type : 'outside' }
   },
              
              
               helpers : {
                    
                    thumbs : {
                        width  : 80,
                        height : 80
                        
                    }
                },
            
               
                                            
 beforeLoad: function() {
    this.title = $(this.element).attr('caption');
   }
  
            });