JSFiddle - React, Tailwind, and code Playground

HTML

<h1>test</h1>
<h1>test</h1>

CSS

h1 {
    background: red;
    
    -webkit-margin-before: 50px;
    -webkit-margin-after: 50px;
    -webkit-margin-start: 50px;
    -webkit-margin-end: 50px;
    
    margin: 0;
    padding: 0;
}