JSFiddle - React, Tailwind, and code Playground

HTML

<div class="father">
    <div class="son"></div>
</div>

CSS

html{
    background: #fff;
}

body{
    margin: 0;
    background: #a0cbed;
}

html,
body {
    overflow: hidden;
}

.father {
    overflow: hidden;
    width: 200px;
    height: 200px;
    margin: 50px;
    background: #008800;
}

.son {
    width: 50px;
    height: 50px;
    margin: 20px;
    background: #cc0000;
}