JSFiddle - React, Tailwind, and code Playground

by ckissi

HTML

<article>
  <section>X</section>
  <section>O</section>
  <section>X</section>
  <section>O</section>
  <section>X</section>
  <section>O</section>
  <section>X</section>
  <section>O</section>
  <section>X</section>
</article>

CSS

article {
  display: inline-grid;
  grid-template-rows: 1f 1f 1f;
  grid-template-columns: 1f 1f 1f;
  grid-gap: 3px;
}

section {
  display: flex;
  justify-content: center;
  align-items: center;
  border: 2px solid black;
  font-size: 3em;
}