body {
  --pattern-color: hsl(210, 10%, 50%);
  background-image: linear-gradient(hsla(0, 0%, 17%, 0.272) 1px, transparent 1px),
      linear-gradient(to right, hsla(0, 0%, 17%, 0.272) 1px, #33333300 1px);
  background-size: 20px 20px;
}