JSFiddle - React, Tailwind, and code Playground

by brigand

HTML

<div class="grid">
  <div class="item 1">1</div>
  <div class="item 2">2</div>
  <div class="item 3">3</div>
  <div class="item wide">4</div>
</div>

CSS

* {
  box-sizing: border-box;
}
.grid {
  margin: 4em auto;
  background: #c9c9c9;
  box-shadow: 0 0 32px 3px hotpink;
  width: 22em;
  display: grid;
  grid-gap: 1em;
  grid-template-columns: repeat(3, 1fr);
}

.item {
  background: black;
  color: white;
  text-align: center;
  padding: 1em;
}

.item.wide {
grid-column: 1 / 4;
}