JSFiddle - React, Tailwind, and code Playground

HTML

<div></div>
<div></div>
<div></div>

CSS

div {

    border:1px solid black;

    height:10px;

}

div:nth-child(1) {

    float:left;

    width:40px;

}

div:nth-child(2) {

    float:right;

    width:40px;

}

div:nth-child(3) {

    overflow:hidden;

}