.view-frame.ng-enter {
  animation: 1.2s fade-in;
  z-index: 100;
}

.view-frame.ng-leave {
  animation: 0.4s fade-out;
  z-index: 99;
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes fade-out {
  from { opacity: 1; }
  to   { opacity: 0; }
}