JSFiddle - React, Tailwind, and code Playground

by Stephen Haase

HTML

<body>
    <div id="container">
        <div id="outer">
            <div id="inner"></div>
        </div>
    </div>
</body>

CSS

#container {
    overflow:hidden;
    width:100%;
    height:100%;
}
#outer {
    position: relative;
    width: 100%;
    padding-bottom: 50%;
}
#inner {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: green;
}