JSFiddle - React, Tailwind, and code Playground

HTML

<div class="parent">
    I am the parent.
    
    <div class="child red">I am the red child.</div>
    
    <div class="child blue">I am the blue child.</div>
    
    <div class="child green">I am the green child.</div>
</div>

CSS

.parent
{
    position: relative;
}

.child
{
    position: absolute;
    padding: 5px;
}

.red
{
    background-color: red;
    z-index: 1;
}

.blue
{
    background-color: blue;
}

.green
{
    background-color: green;
}