title: CSS animation in Firefox not work
body: <p>Hello i create animation for my box and all work in chrome. But in firefox dont work.
  I try to use -moz- but again nothing. </p>
  
  <p><strong>CSS code for animation what i using is :</strong></p>
  
  <pre><code>@-webkit-keyframes pulse {
    from {
      -webkit-transform: scale(1.0);
      opacity: 0.75;
    }
    50% {
      -webkit-transform: scale(1.2);
      opacity: 1.0;
    }
    to { 
      -webkit-transform: scale(1.0);
      opacity: 0.75;
    }
  }
  
  div.pulse { opacity: 0.75; }
  div.pulse:hover {
    -moz-animation-name: pulse; 
    -moz-animation-duration: 0.5s; 
    -moz-animation-iteration-count: 1; 
  
    -webkit-animation-name: pulse; 
    -webkit-animation-duration: 0.5s; 
    -webkit-animation-iteration-count: 1; 
  }
  </code></pre>
  
  <p>Anyone can tell what i do wrong? Whay dont work in mozila? </p>