servo/tests/wpt/css-tests/css-multicol-1_dev/html4/multicol-height-block-child-001.htm

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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>CSS Multi-column Layout Test: multi-column element with child block (complex)</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/"> <!-- 2013-08-08 -->
<link rel="help" href="http://www.w3.org/TR/css3-multicol/#the-multi-column-model" title="2. The multi-column model">
<link rel="bookmark" href="http://lists.w3.org/Archives/Public/www-style/2013Aug/0091.html" title="[css3-multicol] Nested multicolumn elements rendering">
<link rel="match" href="reference/multicol-height-block-child-001-ref.htm">
<meta name="flags" content="ahem">
<meta name="assert" content="This test checks that a nested multi-column element's inline content could be clipped horizontally.">
<style type="text/css">
div
{
background-color: blue;
font: 20px/1 Ahem;
height: 8em;
width: 14em;
column-count: 2;
column-gap: 2em;
/*
N == 2;
W == 6em;
H == 8em;
*/
}
div#outer
{
color: black;
column-fill: auto;
}
div#inner
{
color: orange;
column-fill: balance;
}
</style>
</head>
<body>
<div id="outer">
bla bla bla bla bla
<div id="inner">orn orn orn zzz zzz zzz</div>
</div>
<!--
Both column boxes of div#inner start in the 1st
column box of div#outer multi-column element.
The first 3 lines boxes of 1st
column box of div#inner will be rendered inside the
1st column box of div#outer but not its 2nd.
Because 1st column box of div#outer is
6em wide while the div#inner multi-column element
is 14em wide, this makes the first 3 line boxes
(with the 'z' trios) of 2nd column box of div#inner
clipped.
Then, at this point, the div#inner multi-column
element should be fragmented in order to continue to
render the 5 empty line boxes it has into the
2nd column box of div#outer. Since those 5 line
boxes are empty, we only see the extension it
creates horizontally, which is
14em - 6em == 8em horizontally and
5 lines boxes == 5em tall
Expected results:
0em 14em 22em
v v v
0 *********************************************
* bla | *
* bla | *
* bla | *
* bla | *
5 * bla | *
6 * orn |****************
7 * orn |
8 * orn |
*****************************
-->
</body>
</html>