mozilla-central/testing/web-platform/tests/css/css-writing-modes/clearance-calculations-vrl-006.xht

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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<head>
<title>CSS Writing Modes Test: Clearance calculations - clearing box has larger margin than width of float</title>
<!--
This test is the verticalized version of
-->
<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="match" href="clearance-calculations-vrl-006-ref.xht" />
<meta content="ahem image" name="flags" />
<meta content="This test checks that when a clearing element (in a block formating context with 'writing-mode' set to 'vertical-rl') has a right margin larger than the width of a floated element, then the right margin is collapsed with the margin-left of preceding in-flow sibling. The clearing element is then placed at the point of the resulting collapsed margin." name="assert" />
<link rel="stylesheet" type="text/css" href="/fonts/ahem.css" />
<style type="text/css"><![CDATA[
div
{
height: 5em; /* computes to 100px */
}
div#parent
{
background: red url("support/clearance-calculation-vrl-006.png");
font: 20px/1 Ahem; /* computes to 20px/20px */
min-width: 7em;
writing-mode: vertical-rl;
}
div > div
{
background-color: green;
width: 1em;
}
div#preceding-sibling
{
margin-left: 1em;
}
div#floated-left
{
float: left;
}
div#clearing-left /* collapsing-through element */
{
clear: left;
margin-left: 4em;
margin-right: 5em;
width: 0em;
}
]]></style>
</head>
<body>
<p>Test passes if there is <strong>no red</strong>.</p>
<div id="parent">
<div id="preceding-sibling"></div>
<div id="floated-left"></div>
<div id="clearing-left"></div>
<div id="following-sibling"></div>
</div>
</body>
</html>