.c-figure__image {
  display: block;
  max-width: 100%;
}

.c-figure__caption {
  opacity: .75;
}

.c-figure__image {
  display: block;
  max-width: 100%;
}

.c-figure__caption {
  margin-top: .25em;
  opacity: .75;
}

Add a touch of top margin to figcaption
GH-12: Add a touch of top margin to figcaption
