JSFiddle - React, Tailwind, and code Playground

HTML

<img class="height" src="http://www.independent.co.uk/incoming/article8465213.ece/alternates/w620/v2-cute-cat-picture.jpg">
<img class="height" src="http://coolwildlife.com/wp-content/uploads/galleries/post-345/Wolf%20Pictures%20034.jpg"> 
<img class="height" src="http://upload.wikimedia.org/wikipedia/commons/8/80/Flower_Pictures_4.jpg">
<img class="height" src="http://www.independent.co.uk/incoming/article8465213.ece/alternates/w620/v2-cute-cat-picture.jpg">
<img class="height" src="http://coolwildlife.com/wp-content/uploads/galleries/post-345/Wolf%20Pictures%20034.jpg">

CSS

.height {
    height: 100px;
}