JSFiddle - React, Tailwind, and code Playground

HTML

<section class="wapper">
    <div class="content"></div>
</section>

CSS

.wapper{
    position: relative;
    width: 5em;
    padding: 5em;
    background: black;
}

.content{
   position: absolute;
    width: 100%;
    height: 100%;
    padding: 3em;
    background: red;
}