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<!DOCTYPE html>
<html>
  <meta charset="utf-8">
  <title>CSS-Writing Modes Test: propagation of the writing-mode property from body to root</title>
  <link rel="author" title="Ting-Yu Lin" href="mailto:tlin@mozilla.com">
  <link rel="author" title="Mozilla" href="http://www.mozilla.org/">
  <link rel=help href="https://drafts.csswg.org/css-writing-modes-3/#principal-flow">
  <link rel="match" href="block-flow-direction-025-ref.xht">
  <meta name=assert content="The writing mode of the body must be propagated to the root with the dynamic change.">

  <script>
  function runTest() {
    document.body.offsetHeight;
    document.body.style.writingMode = "vertical-rl";
  }
  </script>

  <style>
  div {
    background-color: blue;
    height: 100px;
    width: 100px;
  }
  </style>

  <body onload="runTest();">
    <div></div>

    <p><img src="support/block-flow-direction-025-exp-res.png" width="359" height="36" alt="Image download support must be enabled"></p>
    <!--
         The image says:
         Test passes if there is a blue square in the
         <strong>upper-right corner</strong> of the page.
    -->
  </body>
</html>