multicol-containing-001.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 Multi-column Layout Test: a column box can not act as containing block for elements with 'position: absolute'</title>
<link rel="author" title="Opera Software ASA" href="http://www.opera.com/" />
<link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2013-07-27 -->
<link rel="help" href="http://www.w3.org/TR/css3-multicol/#the-multi-column-model" title="2. The multi-column model" />
<link rel="match" href="multicol-containing-001-ref.xht"/>
<meta name="flags" content="ahem" />
<meta name="assert" content="This test checks that a column box does not establish containing block for elements with 'position: absolute'." />
<style type="text/css"><![CDATA[
div
{
background-color: yellow;
border: gray solid 1em;
color: black;
font: 1.25em/1 Ahem;
orphans: 1;
widows: 1;
width: 12em;
column-count: 3;
column-gap: 0;
}
span
{
color: red;
position: absolute;
top: -1em;
}
/*
In this test, the initial containing block establishes containing block
for such red span. Therefore, the 2 short red stripes should be
positioned out of view, just outside the top edge of viewport.
*/
]]></style>
</head>
<body>
<div>
bl ac
<span>re dd</span>
bl ac
bl ac
</div>
</body>
</html>
