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  <title>CSS Writing Modes Test: 'background-size: 100%' filling padding-box of document root element</title>

  <link rel="author" title="Koji Ishii" href="mailto:kojiishi@gmail.com">
  <link rel="reviewer" title="GÃ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <!-- 2015-05-01 -->
  <link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#physical-only" title="7.6 Purely Physical Mappings">
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