title: ng-enter-stagger animation not working on safari
body: <p>I have a ng-enter-stagger animation that works on chrome and firefox but not on safari.</p>
  
  <p>I have prefixed the transition definition with -webkit- but it is not working on safari. See this <a href="http://codepen.io/NicholasMurray/pen/OVZeQK" rel="nofollow">codepen</a> for a demo of the issue</p>
  
  <pre><code>    .animate-repeat.ng-enter-stagger,
      .animate-repeat.ng-leave-stagger {
          -webkit-transition-delay: 400ms;
          -webkit-transition-duration: 0s;
          transition-delay: 400ms;
          transition-duration: 0s;
      }
  </code></pre>