rties like 'height, width'
means only the specified properties will be transitioned.">
<style>
  #test {
    background-color: red;
    height: 100px;
    transition-duration: 2s;
    transition-property: height, width;
    transition-timing-function: linear;
    width: 100px;
  }
</style>
<body>
  <p>Click the red square below. Test passes if both height and width of square grow smoothly but the color changed to green immediately.</p>
  <div id="test"></div>
  <script>
    (function() {
      var div = doc