third_party/angular/docs/examples/example-example44/animations.css

  .animate-show {
    line-height:20px;
    opacity:1;
    padding:10px;
    border:1px solid black;
    background:white;
  }

  .animate-show.ng-hide-add,
  .animate-show.ng-hide-remove {
    display:block!important;
  }

  .animate-show.ng-hide-add.ng-hide-add-active,
  .animate-show.ng-hide-remove.ng-hide-remove-active {
    -webkit-transition:all linear 0.5s;
    transition:all linear 0.5s;
  }

  .animate-show.ng-hide {
    line-height:0;
    opacity:0;
    padding:0 10px;
  }

  .check-element {
    padding:10px;
    border:1px solid black;
    background:white;
  }