.animation-container {
  position: absolute;
  width: 100%;
  height: 100%;
  top: 0;
  left: 0;
  overflow: hidden;
}

.img-a, .img-b {
  position: absolute;
  display: block;
  top: 0;
  left: 0;
  z-index: 20;
  opacity: 0;
  width: 100%;
  height: auto;
}

.img-a img, .img-b img {
  width: 100%;
  height: auto;
  display: block;
  object-fit: cover;
}

.open .img-a {
  animation: fadeIn 1.4s ease-out forwards;
  animation-delay: 1.2s;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.open .img-b {
  animation: stampIn 0.8s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
  animation-delay: 2s;
}

@keyframes stampIn {
  0% {
    opacity: 0;
    transform: scale(3) rotate(-10deg);
  }
  70% {
    opacity: 1;
    transform: scale(0.9) rotate(0deg);
  }
  100% {
    opacity: 1;
    transform: scale(1) rotate(0deg);
  }
}