JSFiddle - React, Tailwind, and code Playground

HTML

<div>

</div>

CSS

div {
  width: 420px;
  height: 720px;
  background: linear-gradient(to right, red 1px, transparent 1px), linear-gradient(to bottom, red 1px, transparent 1px);
  background-size: 60px 30px;
}