body {
  display: grid;
  min-height: 100vh;
  align-content: safe center;
}

h1 {
  margin-top: 0;
}

main {
  display: grid;
  grid-auto-rows: minmax(8em, 1fr);
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 8em), 1fr));
  gap: 1em;
}

figure {
  display: grid;
  grid-template:
    [img-start] 1fr [caption-start] min-content [img-end caption-end]
    / [img-start caption-start] 1fr [img-end caption-end];
  margin: 0;
  position: relative;
}

img {
  border: thin solid currentColor;
  grid-area: img;
  height: 100%;
  object-fit: cover;
  width: 100%;
}

figcaption {
  background: hsla(330deg, 5%, 95%, 0.9);
  border: thin solid currentColor;
  border-radius: 0.25em;
  grid-area: caption;
  font-size: 0.75em;
  margin: 0.25em;
  padding: 0.25em;
}

strong {
  display: block;
}