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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: margin collapsing - clear with child margin</title>
+
+ <!--
+ Inspired by
+ http://test.csswg.org/suites/css2.1/20110323/html4/c5525-fltmult-000.htm
+ -->
+
+ <link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
+ <link rel="reviewer" title="Arron Eicholz" href="arronei(at)gmail.com" /> <!-- 2013-07-30 -->
+ <link rel="bookmark" href="http://lists.w3.org/Archives/Public/public-css-testsuite/2012Jan/0022.html" title="[RC6] c5525-fltmult-000 imprecise and failed by several browsers" />
+ <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins" title="8.3.1 Collapsing margins" />
+ <link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
+
+ <meta name="assert" content="An element on which 'clear' is set to a value other than 'none' can have its own margin-top collapse with its first inflow block-level child as long as no line boxes, no clearance, no padding and no border separate them." />
+
+ <style type="text/css"><![CDATA[
+ body {margin: 8px;}
+
+ p {margin: 1em 0em;}
+
+ div#overlapped-red
+ {
+ background-color: red;
+ height: 100px;
+ position: absolute;
+ width: 100px;
+ z-index: -1;
+ }
+
+ div#floated-left
+ {
+ background-color: green;
+ color: green;
+ float: left;
+ font: 1em/1.25 serif;
+ padding: 15px;
+ /*
+
+ 15px : padding-top
+ +
+ 20px : line box height
+ +
+ 15px : padding-bottom
+ =====
+ 50px
+
+ */
+ width: 70px;
+ }
+
+ div#cleared-left {clear: left;}
+
+ div#child-of-cleared-left
+ {
+ background-color: green;
+ color: green;
+ height: 50px;
+ margin-top: 50px;
+ width: 100px;
+ }
+
+ /*
+ The idea is to have div#cleared-left's margin-top collapse
+ with div#child-of-cleared-left's margin-top. The margin collapsing
+ should occur before calculating clearance.
+ */
+ ]]></style>
+
+ </head>
+
+ <body>
+
+ <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+ <div id="overlapped-red"></div>
+
+ <div id="floated-left">flt lef</div>
+
+ <div id="cleared-left">
+ <div id="child-of-cleared-left">chld clr</div>
+ </div>
+
+ </body>
+</html>