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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 09:22:09 +0000
commit43a97878ce14b72f0981164f87f2e35e14151312 (patch)
tree620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/css/CSS2/floats-clear/margin-collapse-clear-013.xht
parentInitial commit. (diff)
downloadfirefox-43a97878ce14b72f0981164f87f2e35e14151312.tar.xz
firefox-43a97878ce14b72f0981164f87f2e35e14151312.zip
Adding upstream version 110.0.1.upstream/110.0.1upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
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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 with clearance - margins of a 'collapsed through' box with clearance do not collapse with parent block's bottom margin</title>
+
+ <link rel="help" href="http://www.w3.org/TR/CSS21/box.html#collapsing-margins" />
+ <link rel="help" href="http://www.w3.org/TR/CSS21/visudet.html#normal-block" />
+ <link rel="bookmark" href="http://lists.w3.org/Archives/Public/public-css-testsuite/2013Oct/0009.html" title="Issue with margin-collapse-clear-012.htm and margin-collapse-clear-013.htm" />
+ <link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
+ <link rel="author" title="Bruno Fassino" href="fassino[at]gmail.com" />
+ <link rel="match" href="margin-collapse-clear-012-ref.xht" />
+
+ <meta content="When an element has had clearance applied to it and its own margins collapse, these margins do not collapse with the bottom margin of the parent block" name="assert" />
+
+ <style type="text/css"><![CDATA[
+ #rel-pos-wrapper {position: relative;}
+
+ #parent-lime
+ {
+ background-color: lime;
+ border-top: black solid 1px;
+ width: 50%;
+ }
+
+ #float-left-blue
+ {
+ background-color: blue;
+ float: left;
+ height: 100px;
+ width: 100px;
+ }
+
+ #clear-left
+ {
+ clear: left;
+ margin-bottom: 140px;
+ margin-top: 40px;
+ }
+
+ #next-yellow
+ {
+ background-color: yellow;
+ height: 100px;
+ }
+
+ .ref-overlapped-red
+ {
+ background-color: red;
+ position: absolute;
+ z-index: -1;
+ }
+
+ #ref1
+ {
+ height: 200px;
+ top: 1px;
+ width: 50%;
+ }
+
+ #ref2
+ {
+ height: 100px;
+ top: 201px;
+ width: 100%;
+ }
+ ]]></style>
+
+ </head>
+
+ <body>
+
+ <p>Test passes if there is <strong>no red</strong>.</p>
+
+ <div id="rel-pos-wrapper">
+
+ <!--
+
+ clearance
+ +
+ margin-top of #clear-left (40px)
+ ====================================
+ height of #float-left-blue (100px)
+
+ therefore, clearance is equal to +60px
+
+ -->
+
+ <!--
+
+ #parent-lime should have height 200px, sum of:
+
+ 100px : height of #float-left-blue
+ +
+ (140px - 40px) : part of #clear-left's margin-bottom
+ exceeding #clear-left's margin-top
+ =======
+ 200px
+
+ The position of the top border edge of the div#clear-left
+ is where it would have been if the element had a
+ non-zero bottom border. The margins of div#clear-left
+ collapse together to 140px and the top border edge of
+ div#clear-left is at 40px inside of it. Clearance is
+ added at such position, not to the whole 140px.
+
+ Issue with margin-collapse-clear-012.htm and margin-collapse-clear-013.htm
+ http://lists.w3.org/Archives/Public/public-css-testsuite/2013Oct/0012.html
+
+ -->
+
+ <div id="parent-lime">
+ <div id="float-left-blue"></div>
+ <div id="clear-left"></div>
+ </div>
+
+ <!--
+ #next-yellow should immediately follow #parent-lime (no margins in between)
+ -->
+
+ <div id="next-yellow"></div>
+
+ <!--
+ #ref1 and #ref2 boxes create a sort of 'reference rendering'
+ where #ref1 should be covered, overlapped by #parent-lime
+ while #ref2 should be covered, overlapped by #next-yellow.
+ -->
+
+ <div id="ref1" class="ref-overlapped-red"></div>
+ <div id="ref2" class="ref-overlapped-red"></div>
+
+ </div>
+
+ </body>
+</html>