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<!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: multicolumn and margin-bottom collapsing</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/" /> <!-- 2013-08-11 -->
<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-nested-002-ref.xht" />
<meta name="assert" content="This test checks that a block container element's margin-bottom can collapse with its multi-column parent's margin-bottom if no line boxes, no clearance, no padding and no border separate them." />
<meta name="flags" content="ahem" />
<style type="text/css"><![CDATA[
body {margin: 0em;}
body > div
{
font: 1.25em/1 Ahem;
width: 32em;
column-gap: 1em;
column-width: 8em;
}
/*
N == max(1, floor((available-width + column-gap) / (column-width + column-gap)));
N == max(1, floor((32em + 1em) / (8em + 1em)));
N == max(1, floor(33em / 9em));
N == max(1, floor(3.6));
N == max(1, 3);
N == 3;
W == ((available-width + column-gap) / N) - column-gap;
W == ((32em + 1em) / 3) - 1em;
W == (33em / 3) - 1em;
W == (11em) - 1em;
W == 10em;
*/
div
{
background: yellow;
color: black;
orphans: 1;
widows: 1;
}
div > div {margin: 0 1em 1em;}
div + div {color: blue;}
div + div + div {color: pink;}
]]></style>
</head>
<body>
<div>
<div>
bl ac
bl ac
bl ac
bl ac
</div>
<div>
bl ue
bl ue
bl ue
bl ue
</div>
<div>
Pi nk
Pi nk
Pi nk
Pi nk
</div>
</div>
</body>
</html>
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