JSFiddle - React, Tailwind, and code Playground

by timkl

HTML

<div id="first">
<div id="second">
</div>
</div>

CSS

body {
    background: gray;
    padding: 20px;
}

#first {
    position: relative;
    background: green;
    height: 400px;
    width: 400px;
    }

#second {
    position: absolute;
    background: blue;
    height: 200px;
    width: 200px;
    top: 20px;
    left: 0;
    }