chromium/third_party/blink/web_tests/external/wpt/css/css-transitions/transition-property-044-manual.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Transitions Test: transition-property - word-spacing</title>
<link rel="author" title="Intel" href="http://www.intel.com">
<link rel="author" title="Shiyou Tan" href="mailto:[email protected]">
<link rel="help" href="https://drafts.csswg.org/web-animations-1/#animation-type">
<link rel="help" href="https://drafts.csswg.org/css-text-3/#word-spacing-property">
<meta name="flags" content="ahem">
<meta name="assert" content="Test checks that the 'word-spacing' property is animatable.">
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style>
  #test {
    font-family: ahem;
    transition-duration: 2s;
    transition-property: word-spacing;
    transition-timing-function: linear;
  }
</style>
<body>
  <p>Click any black rectangle below. Test passes if the second rectangle moves gradually not immediately from left to right until it stops and the first one does not move.</p>
  <div id="test">text text</div>
  <script>
    (function() {
      var test = document.querySelector("#test");
      test.addEventListener("click", function(evt) {
        test.setAttribute("style", "word-spacing: 40px;");
      }, false);
    })();
  </script>
</body>