Robware/css/animations.css

.ng-leave {
  opacity: 1;
}
.ng-leave.ng-leave-active {
  opacity: 0;
}
.ng-enter {
  opacity: 0;
}
.ng-enter.ng-enter-active {
  opacity: 1;
}
.ng-hide-add {
  opacity: 1;
}
.ng-hide-add.ng-hide-add-active {
  opacity: 0;
}
.ng-hide-remove {
  opacity: 0;
}
.ng-hide-remove.ng-hide-remove-active {
  opacity: 1;
}