@media (min-width: 641px) {
  .grid.grid-large {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .grid.grid-medium {
    grid-template-columns: repeat(6, minmax(0, 1fr));
  }

  .grid.grid-small {
    grid-template-columns: repeat(9, minmax(0, 1fr));
  }
}