JSFiddle - React, Tailwind, and code Playground

by David Thomas

HTML

<div class="list-container">
</div>

<div class="button-container">
</div>

CSS

body {
    margin: 4px;
    width: 400px;
    height: 250px;
    border: 1px solid black;
    padding: 0;
    font-size: 0;
}

.list-container {
    display: inline-block;
    width: 300px;
    height: 100%;
    background-color: red;
}

.button-container {
    display: inline-block;
    width: 100px;
    height: 100%;
    background-color: blue;
}