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+<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
+<html xmlns="http://www.w3.org/1999/xhtml">
+ <head>
+ <title>CSS Test: Containing Blocks - Block-level elements position based on right-to-left direction and parent element is absolute</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="containing-block-020-ref.xht" />
+
+ <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 (closest) positioned ancestor." />
+ <style type="text/css">
+ div
+ {
+ border: solid black;
+ padding: 1in;
+ position: absolute;
+ width: 0;
+ }
+ span
+ {
+ display: block;
+ }
+ #span1
+ {
+ direction: rtl;
+ }
+ span span
+ {
+ background: blue;
+ height: 1in;
+ left: auto;
+ position: absolute;
+ top: auto;
+ width: 1in;
+ }
+ /*
+ 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.
+ */
+ </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>