JSFiddle - React, Tailwind, and code Playground

by enve

HTML

<html>
<head>
<style type="text/css">
     #body{
          background:url('http://www.w3schools.com/css/w3css.gif') no-repeat 50px 0px,
          url('http://www.w3schools.com/css/w3css.gif') no-repeat top right 50px;
     }
</style>
</head>
<body id="body">
   Content
</body>
</html>

JavaScript

document.getElementById('body').style.backgroundPosition = '150px 0, 100px 0';