JSFiddle - React, Tailwind, and code Playground

HTML

<div id="d1">
    <div id="d2">
     <div id="d3">
     </div>
    </div>
   </div>

CSS

#d1{
    position:relative;top:10px;left:10px;width:20px;height:20px;background:red;
}

#d2{
    position:absolute;top:50px;left:50px;width:20px;height:20px;background:blue;
}

#d3{
    position:relative;top:100px;left:100px;width:20px;height:20px;background:green;
}