JSFiddle - React, Tailwind, and code Playground

HTML

<div id="thumbs">
    <img src="http://dummyimage.com/300x200/444/fff" alt=""/>
    <img src="http://dummyimage.com/300x200/444/fff" alt=""/>
    <img src="http://dummyimage.com/300x200/444/fff" alt=""/>
</div>

CSS

#thumbs {   
    width: 100%;
    max-width:100%;
    display: flex;
    flex-wrap: nowrap;
		align-items: stretch;
}

img {
 	align-self: stretch;
	flex-grow: 1;
  flex-shrink: 1;
}