section.sr {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition: opacity 700ms ease,
    transform 700ms cubic-bezier(0.215, 0.61, 0.355, 1);
  will-change: opacity, transform;
}

section.sr.is-visible {
  opacity: 1;
  transform: translate3d(0, 0, 0);
}

@media (prefers-reduced-motion: reduce) {
  section.sr {
    opacity: 1;
    transform: none;
    transition: none;
  }
}