@media (min-width: 820px) {
  .ref-grid > :nth-child(n + 3),
  body.home .ref-grid > :nth-child(n + 3) {
    grid-column: span 6;
  }

  .ref-grid > :last-child:nth-child(odd),
  body.home .ref-grid > :last-child:nth-child(odd) {
    grid-column: 1 / span 7;
  }
}