JSFiddle - React, Tailwind, and code Playground

by Maxim Zubarev

HTML

<div id="bar"></div>
<iframe src="http://apple.com" frameborder="0"></iframe>

CSS

body {
    width: 100%;
    height: 100%;
}

#bar {
    height: 30px;
    background: #000;
}

iframe {
    box-sizing: border-box;
    width: 100%;
    height: 100%;
}