/* aparicion.css */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: opacity 2.2s cubic-bezier(0.22, 1, 0.36, 1), transform 2.2s cubic-bezier(0.22, 1, 0.36, 1);
}
.reveal.active {
  opacity: 1;
  transform: none;
}