JSFiddle - React, Tailwind, and code Playground

by danield770

HTML

<div></div>

CSS

*
{
    margin:0;padding:0;
}

div
{
    width: 100vw; 
    height: 56.25vw; /* 100/56.25 = 1.778 */
    background: pink;
    max-height: 100vh;
    max-width: 177.78vh; /* 16/9 = 1.778 */
    margin: auto;
    position: absolute;
    top:0;bottom:0; /* vertical center */
    left:0;right:0; /* horizontal center */
}