JSFiddle - React, Tailwind, and code Playground

by Alexey

HTML

<div id='a'>A</div>
<div id='b'>B</div>

CSS

div{
    position:absolute;
    width: 200px;
    height: 200px;
}

#a{
    top: 0;
    left: 0;
    background-color:red;
}

#b{
    top: 50px;
    left: 100px;
    background-color:green;
    
    opacity: 0.9;
}