#flip {
  opacity: 0;
  perspective: 100px;
  text-align: center;
}
#flip span {
  display: inline-block;
  transform: rotateY(-90deg) rotateX(25deg);
  transform-origin: 50% 55%;
  opacity: 0;
  color: crimson;
  transition: transform 3s ease, color 1.5s ease;
}