chromium/third_party/blink/web_tests/printing/page-orientation-propagated.html

<!DOCTYPE html>
<script>
  if (window.testRunner)
      testRunner.setPrinting(true);
</script>
<style>
  @page counter-clockwise {
      page-orientation: rotate-left;
  }
  @page clockwise {
      page-orientation: rotate-right;
  }
  @page upright {
      page-orientation: upright;
  }
</style>
<div style="page:counter-clockwise;">
  First page is counter-clockwise.
</div>
<div>
  Second page is upright.
</div>
<div style="border:solid;">
  <div style="page:clockwise;">
    The third page is rotated clockwise, and the element with the
    border is also on this page (including the block-start border).
  </div>
</div>
<div style="page:clockwise;">
  <div>
    Still on the third page.
  </div>
  <div style="page:counter-clockwise;">
    <div style="page:upright;">
      Page four is upright.
    </div>
    Counter-clockwise on the fifth page.
  </div>
</div>
<div>
  <div style="page:counter-clockwise;">
    Still on the fifth page.
  </div>
</div>