Superposition Grid

.superposition-grid {
  display: grid;
}

.image {
  grid-area: 1 / -1 / 1 /-1;
}

.overlay {
  grid-area: 1 / -1 / 1 /-1;
  inline-size: 100%;
  block-size: 100%;
  background-color: hsl(0deg 0% 0% / 20%);
}