dir-selector-auto-direction-change-001.html

<!doctype html>
<html>
<head>
    <title>CSS Selectors Level 4 Test: Check for correctly updating :dir=auto when the the directionality is changed in a display:none subtree </title>
    <meta charset="utf8">
    <link rel="author" title="Miyoung Shin" href="mailto:[email protected]">
    <link rel="help" href="http://www.w3.org/TR/selectors4/#dir-pseudo">
    <link rel="match" href="../reference/ref-filled-green-100px-square.xht">
    <style>
        #target {
          width: 100px;
          height: 100px;
          background-color: red;
        }
        :dir(ltr) + #target {
          background-color: green;
        }
    </style>
</head>

<body>
    <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
    <div dir="auto" style="display:none">
        <div>
          <div id="inner">رسمية</div>
        </div>
    </div>
    <div id="target"></div>
    <script>
        inner.offsetTop;
        inner.firstChild.data = "LTR";
    </script>
</body>
</html>

chromium/third_party/blink/web_tests/external/wpt/css/selectors/dir-selector-auto-direction-change-001.html