JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <h1>Red is `h1`</h1>
    Green is `div`
</div>
Blue is `body`

CSS

body{
    background-color:#00f;
}
div{
    background-color:#0f0;
    overflow:auto;
}
h1{
    background-color:#f00;
    margin:100px 10px 10px;
}