Angular Fade animation

fade.scss

.fade {
  @include transition(opacity 0.25s cubic-bezier(0.250, 0.460, 0.450, 0.940));

  &.ng-enter {
    opacity: 0;

    &.ng-enter-active {
      opacity: 1;
    }
  }

  &.ng-hide-add {
    display: block !important;

    opacity: 1;

    &.ng-hide-add-active {
      opacity: 0;
    }
  }
}