.container {
  display: grid;
  grid-template-columns: repeat(2, 200px);
  grid-template-rows: repeat(2, 200px);
  gap: 1em;
  width: 500px;
  height: 500px;
  background-color: lightgray;
}

.item {
  width: 100px;
  height: 100px;
  background-color: steelblue;
}


body {
  display: grid;
  place-content: center;

  height: 80vh;
  background: black;
  color: white;
}

a {
  color: white;
  font-size: 1.5rem;
  text-decoration: none;
}