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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 Test: margin collapsing - resolving vertical padding percentage</title>
<link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
<meta content="Adjoining of vertical (top and bottom) margins must be determined only after resolving percentage padding-top and padding-bottom values." name="assert" />
<style type="text/css"><![CDATA[
div#grand-parent-block-container
{
background-color: red;
border: black solid 3px;
/* Such border prevents margin collapsing with the body vertical margins */
}
div#parent-block-container
{
background-color: green;
color: white;
padding: 2%;
}
div#child-block {margin: 100px 0px;}
/*
In this testcase, div#child-block's vertical (top and bottom)
margins should collapse with div#parent-block-container's vertical
(top and bottom) margins because div#child-block has no used
padding-top and no used padding-bottom. On the other hand,
div#parent-block-container's vertical (top and bottom) margins
should NOT collapse with div#grand-parent-block-container's vertical
(top and bottom) margins because div#parent-block-container, after
resolving percentage values, has an used padding-top value and an used
padding-bottom value.
*/
]]></style>
</head>
<body>
<div id="grand-parent-block-container">
<div id="parent-block-container">
<div id="child-block">
Test passes if there is <strong>no red</strong>.
</div>
</div>
</div>
</body>
</html>