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 <head>

  <title>CSS Writing Modes Test: absolutely positioned non-replaced element - 'direction: rtl' and 'top', 'height', and 'bottom' are 'auto'</title>

  <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
  <link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#vertical-layout" title="7.1 Principles of Layout in Vertical Writing Modes" />
  <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-height" title="10.6.4 Absolutely positioned, non-replaced elements" />
  <link rel="match" href="abs-pos-non-replaced-vlr-009-ref.xht" />

  <meta name="flags" content="ahem image" />
  <meta name="assert" content="When 'direction' is 'rtl' and 'top', 'height' and 'bottom' are 'auto', then set 'top' to the static position, the height is based on content and then solve for 'bottom'." />

  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
  <style type="text/css"><![CDATA[
  div#containing-block
    {
      background: red url("support/bg-red-2col-2row-320x320.png");
      color: transparent;
      direction: rtl;
      font: 80px/1 Ahem;
      height: 320px;
      position: relative;
      width: 320px;
    }

  div#containing-block > span
    {
      background-color: red;
      bottom: auto;
      color: green;
      height: auto;
      position: absolute;
      top: auto;
      writing-mode: vertical-lr;
    }

/*
"
If all three of 'top', 'height', and 'bottom' are auto, set 'top' to the static position and apply rule number three below.

3. 'height' and 'bottom' are 'auto' and 'top' is not 'auto', then the height is based on the content per 10.6.7, set 'auto' values for 'margin-top' and 'margin-bottom' to 0, and solve for 'bottom'
"

'top' + 'margin-top' + 'border-top-width' + 'padding-top' + 'height' + 'padding-bottom' + 'border-bottom-width' + 'margin-bottom' + 'bottom' = height of containing block

So:

     80px : top: auto: set to static position
  +
      0px : margin-top
  +
      0px : border-top-width
  +
      0px : padding-top
  +
  (shrink-to-fit) : height: auto
  +
      0px : padding-bottom
  +
      0px : border-bottom-width
  +
      0px : margin-bottom
  +
  (solve) : bottom: auto
    =====================
    320px : height of containing block

gives us:

     80px : top: auto: set to static position
  +
      0px : margin-top
  +
      0px : border-top-width
  +
      0px : padding-top
  +
     80px : (shrink-to-fit) : height: auto
  +
      0px : padding-bottom
  +
      0px : border-bottom-width
  +
      0px : margin-bottom
  +
  (solve) : bottom: auto
    =====================
    320px : height of containing block

And so computed bottom value must be 160px .
*/

  ]]></style>

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  <p><img src="support/pass-cdts-abs-pos-non-replaced.png" width="246" height="36" alt="Image download support must be enabled" /></p>

  <div id="containing-block">1 2 34<span>X</span></div>

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