.animal-archive__dark {
  background-color: lightgray;
}
.animal-archive__light {
  background-color: white;
}
.animal-archive__header {
  width: 40%;
}
.animal-archive__heading {
  text-transform: uppercase;
}
.animal-archive__details {
  width: 60%;
}
.animal-archive__detail {
  align-self: flex-start;
}