* {
  box-sizing: border-box;
}

body {
  margin: 0;
}

.collage {
  display: grid;
  grid-template-columns: repeat(3, 420px);
  grid-auto-rows: 250px;
  gap: 30px;
  padding: 30px;
  margin: auto;

  grid-template-areas:
    "a b c"
    "d b e"
    "f f e"
    "g h h"
    "g i j"
    "k l j"
    "m m n"
    "o p q"
    "o p r";
}

.item {
  background: #222;
  border-radius: 0px;
  overflow: hidden;
}

/* alturas especiales */
.h530 {
  grid-row: span 2;
}

.item img,
.item video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.down {
  object-position: center 80%;
}
.up {
  object-position: center 45%;
}