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26 December 2018, 22:31:15 UTC
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Tip revision: 9dea3c2b2ff00c937dadd91e34275cd87a9143ea authored by Dominic Farolino on 06 April 2018, 16:58:11 UTC
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Tip revision: 9dea3c2
abs-pos-non-replaced-vrl-028.xht 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

 <head>

  <title>CSS Writing Modes Test: absolutely positioned non-replaced element - 'direction: ltr' and 'left' and 'right' are 'auto' and 'width' is not '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-width" title="10.3.7 Absolutely positioned, non-replaced elements" />
  <link rel="match" href="abs-pos-non-replaced-vrl-004-ref.xht" />

  <meta name="flags" content="ahem image" />
  <meta name="assert" content="When 'direction' is 'ltr' and 'left' and 'right' are 'auto' and 'width' is not 'auto', then set 'left' to the static position and then solve for 'right'." />

  <style type="text/css"><![CDATA[
  div#containing-block
    {
      background: red url("support/bg-red-3col-2row-320x320.png");
      color: transparent;
      direction: ltr;
      font: 80px/1 Ahem;
      height: 320px;
      position: relative;
      width: 320px;
    }

  div#containing-block > span
    {
      background-color: red;
      color: green;
      left: auto;
      position: absolute;
      right: auto;
      width: 1em;
      writing-mode: vertical-rl;
    }

/*
"
2. 'left' and 'right' are 'auto' and 'width' is not 'auto', then if the 'direction' property of the element establishing the static-position containing block is 'ltr' set 'left' to the static position, otherwise set 'right' to the static position. Then solve for 'left' (if 'direction is 'rtl') or 'right' (if 'direction' is 'ltr').
"

'left' + 'margin-left' + 'border-left-width' + 'padding-left' + 'width' + 'padding-right' + 'border-right-width' + 'margin-right' + 'right' = width of containing block

So:

    160px : left: auto: set to static position
  +
      0px : margin-left
  +
      0px : border-left-width
  +
      0px : padding-left
  +
     80px : width
  +
      0px : padding-right
  +
      0px : border-right-width
  +
      0px : margin-right
  +
  (solve) : right: auto
    =====================
    320px : width of containing block

gives us:

    160px : left: auto: set to static position
  +
      0px : margin-left
  +
      0px : border-left-width
  +
      0px : padding-left
  +
     80px : width
  +
      0px : padding-right
  +
      0px : border-right-width
  +
      0px : margin-right
  +
  (solve) : right: auto
    =====================
    320px : width of containing block

And so computed right value must be 80px .
*/

  ]]></style>

 </head>

 <body>

  <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>

 </body>
</html>
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