.image-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.5em;
}

.image-grid a {
  display: block;
  overflow: hidden;
  aspect-ratio: 4 / 3;
}

.image-grid a img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}