JSFiddle - React, Tailwind, and code Playground

HTML

<ul>
    <li><img alt="img1" src="http://dummyimage.com/64x64/f0f/fff" /></li>
    <li><img alt="img2" src="http://dummyimage.com/64x64/f0f/fff" /></li>
    <li><img alt="img3" src="http://dummyimage.com/64x64/f0f/fff" /></li>
</ul>

CSS

li 
{ 
    display:block; 
    float:left; 
    margin:0;
    padding:0;
    background-color:Yellow;
}
li img {
    vertical-align: bottom
}