JSFiddle - React, Tailwind, and code Playground

HTML

<!DOCTYPE html><html><head><meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1, minimum-scale=1, user-scalable=no, minimal-ui, viewport-fit=cover"><meta name="apple-mobile-web-app-capable" content="yes"><meta name="apple-mobile-web-app-status-bar-style" content="black"><title>My App</title>
<link rel="stylesheet" href="https://framework7.io/packages/core/css/framework7.bundle.min.css">
<link href="https://fonts.googleapis.com/icon?family=Material+Icons" rel="stylesheet"></head>
<body><div id="app"><div class="view view-main view-init"><div class="page"><div class="navbar"><div class="navbar-bg"></div><div class="navbar-inner"><div class="left"></div><div class="title">Lazy Load</div><div class="right"></div></div></div><div class="page-content"><div class="block block-strong">
<p> <img data-src="https://cdn.framework7.io/placeholder/nature-500x500-1.jpg" width="1500" height="1500" class="lazy lazy-fade-in demo-lazy" /></p>
<p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Morbi tempus viverra lectus sit amet lobortis. Vestibulum ante ipsum primis in faucibus orci luctus et ultrices posuere cubilia Curae; Quisque faucibus consectetur mauris eget lobortis. Maecenas efficitur efficitur mauris ac vehicula. Sed ut lectus laoreet, semper nisi vel, maximus massa. Duis at lorem vitae sem auctor condimentum a at neque. Phasellus vel scelerisque dui. Morbi varius nibh eu finibus rutrum.</p>
<p> <img data-src="https://cdn.framework7.io/placeholder/nature-500x500-2.jpg" width="1500" height="1500" class="lazy lazy-fade-in demo-lazy" /></p>
<p>Aenean id congue orci. Aliquam gravida nulla nec sollicitudin consectetur. Donec iaculis ipsum in purus tincidunt sagittis quis vehicula sapien. Vestibulum quis consectetur nibh. Pellentesque vehicula ligula sit amet commodo malesuada. Proin eget dolor sodales, egestas sapien sed, consectetur ante. Vivamus imperdiet porttitor condimentum. Aliquam sit amet tellus quis mauris...