JSFiddle - React, Tailwind, and code Playground

HTML

<div id="foo"></div>

CSS

#foo { float: left; width: 200; height: 200; background: #ddd; }
.bar { float: right; width: 100px; height: 100px; background: #fff; margin: 50px; }

JavaScript

$( '<div />', {
  class : "bar"
}).appendTo('#foo');