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<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>CSS Test: Absolutely positioned inline-block element with percentage based height set to 'auto' and over-constrained values</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/" />
<link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" /> <!-- 2012-09-05 -->
<link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#abs-replaced-height" />
<link rel="match" href="absolute-replaced-height-012-ref.xht" />
<meta name="assert" content="An absolutely positioned inline-block replaced element with percentage height resolves based on the containing block height when such height can be resolved." />
<style type="text/css">
#div1
{
position: relative;
height: 2in;
}
div div
{
border: solid green;
height: 1in;
position: absolute;
top: 1in;
width: 300px;
}
iframe
{
border: solid red;
bottom: 1in;
margin-bottom: 0.5in;
margin-top: 0.5in;
position: absolute;
top: 0.5in;
width: auto;
}
/*
0.5in : 'top'
+
0.5in : 'margin-top'
+
3px : 'border-top-width' medium which is often resolved as 3px
+
0 : 'padding-top'
+
1in : 'height' 50% of height of containing block
+
0 : 'padding-bottom'
+
3px : 'border-bottom-width' medium which is often resolved as 3px
+
0.5in : 'margin-bottom'
+
1in : 'bottom'
================
342px : height of containing block (192px)
So, bottom has to be ignored and forced to have the value that
will balance the equation. So, this brings up
0.5in : 'top'
+
0.5in : 'margin-top'
+
3px : 'border-top-width' medium which is often resolved as 3px
+
0 : 'padding-top'
+
1in : 'height' 50% of height of containing block
+
0 : 'padding-bottom'
+
3px : 'border-bottom-width' medium which is often resolved as 3px
+
0.5in : 'margin-bottom'
+
(solve) : 'bottom'
================
-246px : height of containing block (192px)
So, the solved bottom value should be -54px .
*/
</style>
</head>
<body>
<p>Test passes if there is <strong>no red</strong>.</p>
<div id="div1">
<iframe height="50%"></iframe>
<div></div>
</div>
</body>
</html>
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