JSFiddle - React, Tailwind, and code Playground

HTML

<div><img src="http://placehold.it/350x150"></div>

CSS

html, body
{
    height: 100%;
    margin:0;
    padding:0;
}

div {
    position:relative;
    height: 100%;
    width:100%;
}

div img {
    position:absolute;
    top:0;
    left:0;
    right:0;
    bottom:0;
    margin:auto;
}