chromium/third_party/blink/web_tests/external/wpt/css/css-transitions/transition-property-026-manual.html

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Transitions Test: transition-property - margin-right</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-box-3/#margin-physical">
<meta name="assert" content="Test checks that the 'margin-right' property is animatable.">
<style>
  div {
    float: left;
  }
  #ref {
    height: 100px;
    margin-right: 1px;
    transition-duration: 4s;
    transition-property: margin-right;
    transition-timing-function: linear;
    width: 1px;
  }
  #test {
    background-color: blue;
    height: 100px;
    width: 100px;
  }
</style>
<body>
  <p>Click the blue square below. Test passes if the blue square moves gradually not immediately from left to right until it stops.</p>
  <div id="ref"></div>
  <div id="test"></div>
  <script>
    (function() {
      var test = document.querySelector("#test");
      test.addEventListener("click", function(evt) {
        document.querySelector("#ref").setAttribute("style", "margin-right: 200px;");
      }, false);
    })();
  </script>
</body>