JSFiddle - React, Tailwind, and code Playground

HTML

<main>
  <div>
  12345
  </div>
  <div>
  12345678
  </div>
  <div>
  1234
  </div>
  <div>
  1234567
  </div>
</main>

CSS

main {
  display: block;
  width: 200px;
  background: black;
}
div {
  display: inline-block;
  padding: 5px;
  margin: 5px;
  background: green;
}