JSFiddle - React, Tailwind, and code Playground
HTML
<img src="http://www.reprisemedia.co.uk/wp-content/uploads/2014/02/OCEAN.jpg" alt="">
CSS
img {
width: 100%;
height: 100%;
}
<img src="http://www.reprisemedia.co.uk/wp-content/uploads/2014/02/OCEAN.jpg" alt="">
img {
width: 100%;
height: 100%;
}