<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd">
<html>
<head>
<title>CSS Test: Containing Blocks - Block-level elements position based on right-to-left direction and parent element is fixed</title>
<link rel="author" title="Microsoft" href="http://www.microsoft.com/">
<link rel="reviewer" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> <!-- 2012-10-10 -->
<link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#containing-block-details">
<link rel="match" href="reference/containing-block-020-ref.htm">
<meta name="flags" content="">
<meta name="assert" content="When the nearest (closest within document containment hierarchy) positioned ancestor of an absolutely positioned element is a block-level element, then the containing block of such absolutely positioned element is formed by the padding edge of such nearest positioned ancestor.">
<style type="text/css">
div
{
border: solid black;
padding: 1in;
position: fixed;
width: 0;
}
span
{
display: block;
}
#span1
{
direction: rtl;
}
/*
The span#span1 element determines, conditions (§10.3.7 and
§10.6.4) the 'top: auto' and 'left: auto' coordinates while the
wrapping div's padding box forms the containing block
geometry/area.
*/
span span
{
background: blue;
height: 1in;
left: auto;
position: absolute;
top: auto;
width: 1in;
}
</style>
</head>
<body>
<p>Test passes if a filled blue square is in the <strong>lower-left corner</strong> of an hollow black square.</p>
<div>
<span id="span1">
<span></span>
</span>
</div>
</body>
</html>