.cards {
  display: grid;
  grid-auto-rows: auto;
  grid-gap: 1rem;
}
.cards-3 {
  grid-template-columns: repeat(3, 1fr);
}
.cards-12 {
  grid-template-columns: repeat(12, 1fr);
}

.card {
  padding: .5rem;
  border: 2px solid #e6e6e6;
  border-radius: 4px;
  text-align: center;
}

.w-100 {
  width:100%
}