JSFiddle - React, Tailwind, and code Playground

HTML

<div id="wrap">
    <iframe src="http://google.com" /> 
</div>

CSS

#wrap{width:320px; height:320px; -moz-border-radius:10px; background:red; position:relative;}
iframe{width:300px; height:300px; position:absolute; top:10px; left:10px;}