Blitz - WPT: margin-collapse-vlr-023.xht

wpt / css / css-writing-modes / margin-collapse-vlr-023.xht

/css/css-writing-modes/margin-collapse-vlr-023.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: 'vertical-lr' and margin collapsing - absolute positioning and siblings</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/#logical-direction-layout" title="7.4 Flow-Relative Mappings" />

  <meta content="ahem image" name="flags" />
  <meta name="assert" content="This test checks that absolutely positioned boxes do not collapse margins with siblings in 'vertical-lr' writing-mode." />

  <!--
  left static position for the div#abs-pos could be determined with margin collapse
  or without margin collapse; so there are 2 possible rendered layouts for such code
  2015-01-18

  Test adapted and modified from
  http://test.csswg.org/suites/css2.1/nightly-unstable/html4/margin-collapse-012.htm

  "
  The margin collapsing rules apply exactly with the block-start margin substituted for the top margin and the block-end margin substituted for the bottom margin.
  "
  -->
  <link rel="match" href="reference/margin-collapse-022-023-1.xht" />
  <link rel="match" href="reference/margin-collapse-022-023-2.xht" />

  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
  <style type="text/css"><![CDATA[
  div#test
    {
      border: teal solid 1em;
      font: 25px/1 Ahem;
      height: 4em; /* computes to 100px */
      margin-bottom: 0.2em; /* computes to 5px */
      writing-mode: vertical-lr;
    }

  div#wrapper
    {
      background-color: orange;
      border-left: blue solid 1em;
      width: 3em;
    }

  div#wrapper > div
    {
      height: 4em;
      margin-left: 1em;
    }

  div#abs-pos
    {
      background-color: blue;
      position: absolute;
      top: 33px;  /* body's margin + div#test's border-top */
      width: 1em;
    }
  ]]></style>

 </head>

 <body>

  <div id="test">
    <div id="wrapper">
      <div id="widthless-static"></div>
      <div id="abs-pos"></div>
    </div>
  </div>

 </body>
</html>

/css/css-writing-modes/reference/margin-collapse-022-023-1.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>
  <link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
  <style type="text/css"><![CDATA[
  div.ref
    {
      border: teal solid 1em;
      font: 25px/1 Ahem;
      height: 4em; /* computes to 100px */
      margin-bottom: 0.2em;
      width: 4em;
    }
  ]]></style>

 </head>

 <body>
  <div class="ref" id="ref1"><img src="../support/swatch-blue.png" width="25" height="100" alt="Image download support must be enabled" /><img src="../support/swatch-orange.png" width="25" height="100" alt="Image download support must be enabled" /><img src="../support/swatch-orange.png" width="25" height="100" alt="Image download support must be enabled" /><img src="../support/swatch-blue.png" width="25" height="100" alt="Image download support must be enabled" /></div>
 </body>
</html>