JSFiddle - React, Tailwind, and code Playground

HTML

<h1>Adopt a Dog!</h1>
<div>
<img src ="http://cdn1-www.dogtime.com/assets/uploads/gallery/austalian-shepherd-dog-breed-pictures/7-whitefrisbee.jpg">
<img src="http://happydogswaterloo.com/wp-content/uploads/2015/09/Golden_450x471-270x250.jpg">
<img src="http://static.boredpanda.com/blog/wp-content/uploads/2015/06/dog-sleeping-bed-funny-104__605.jpg">
</div>

JavaScript

document.body.style.backgroundColor = 'green';