JSFiddle - React, Tailwind, and code Playground

by Viktor

HTML

<div class="container">
    <div class="inner"></div>
</div>

CSS

.container{
    border:solid black 1px;
    height:200px;
    width:200px;
}
.inner{
    width:100%;
    height:20px;
    background-color:lightblue;
}