CODE EXAMPLE FOR CSS

animation clip path

.down-enter-active { animation: 1s down-enter; }
.down-leave-active { animation: 1s down-leave; }

@keyframes down-enter {
  0% { clip-path: inset(0 0 100% 0); }
  100% { clip-path: inset(0); }
}

@keyframes down-leave {
  0% { clip-path: inset(0); }
  100% { clip-path: inset(100% 0 0 0); }
}