JSFiddle - React, Tailwind, and code Playground

HTML

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

CSS

.parent{
    width: 150px;
    height: 150px;
    color: green;
}
.child{
    width: inherit;
    height: inherit;
    border: 5px solid #000;
 
}