@keyframes contentFadeIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

#content-inner.is-entering {
  animation: contentFadeIn var(--transition-content) ease forwards;
}

#content-inner.is-leaving {
  opacity: 0;
  transition: opacity 180ms ease;
}