JSFiddle - React, Tailwind, and code Playground

HTML

<div id="parent"><div></div><div></div><div></div></div>

CSS

#parent {
  height: 100px;
}
#parent * {
  margin: 0;
}
#parent div {
  display: inline-block;
  position: relative;
  border: 1px solid red;
  width: 50px;
  height: 100%;
}