JSFiddle - React, Tailwind, and code Playground

HTML

<div class="wrap">
    <div class="parent">
        <div class="child"></div>
    </div>
</div>

CSS

.wrap{
margin:100px auto;
width:500px;
}

.parent{
position:relative;
width:200px;
height:200px;
border:3px solid orange;
}

.child{
position:absolute;
bottom:-60px;
right:-60px;
width:200px;
height:200px;
background:#fff;
border:3px solid green;
}