3d;
}
.named {
  view-transition-name: target;
}

.child {
  background: green;
  width: 100px;
  height: 100px;
  top: 0;
  left: 0;
  position: absolute;
  transform: translateZ(-500px);
}

body {
  perspective: 1000px;
  height: 500px;
}

::view-transition-group(root) {
  animation-duration: 50ms;
  opacity: 0;
}
::view-transition-group(target) {
  animation-duration: 0s;
}
::view-transition-new(target) {
  animation: unset;
  opacity: 1;
}
::view-transition-old(target) {
  animation: unset;
  opacity: 0