JSFiddle - React, Tailwind, and code Playground

HTML

<div>
  <img src="http://blog.hdwallsource.com/wp-content/uploads/2014/12/field-wallpaper-31087-31819-hd-wallpapers.jpg">
</div>

CSS

div {
  width:80vw;
  height:80vh;
  background:yellow;
  display:table-cell;
  vertical-align:middle;
  text-align:center;
}
img {
  max-width:100%;
  height:auto;
  max-height:100%;
  }