.bio {
  transition: opacity 0.3s ease-out;
  opacity: 0;
  height: 0;
  overflow: hidden;
}

.bio.is-open {
  opacity: 1;
  height: auto;
}

.arrowb {
  transition: transform 0.3s;
}

.arrowb.is-open {
  transform: rotate(180deg);
}

.illustration {
  transition: transform 0.3s;
}

.illustration:hover {
  transform: scale(1.1);
}