JSFiddle - React, Tailwind, and code Playground

HTML

<div id="a"></div>
<div id="b"></div>

CSS

div {
    border: 1px solid black;
    background: grey;
}

#a {
    position: absolute;
    left: 0px;
    width: 100px;
    height: 100px;
    border-radius: 50px;
}

#b {
    position: absolute;
    left: 110px;
    width: 200px;
    height: 100px;
    border-radius: 20px;
}