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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/css-writing-modes/abs-pos-non-replaced-icb-vrl-002.xht
parentInitial commit. (diff)
downloadfirefox-upstream.tar.xz
firefox-upstream.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 Writing Modes Test: position absolute and 'vertical-rl' - 'left: auto', 'width: auto' and 'right: auto' with 'direction: ltr' in initial containing block</title>
+
+ <link rel="author" title="GĂ©rard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/" />
+ <link rel="help" href="http://www.w3.org/TR/css-writing-modes-3/#vertical-layout" title="7.1 Principles of Layout in Vertical Writing Modes" />
+ <link rel="match" href="../reference/ref-filled-green-100px-square.xht" />
+
+ <meta content="This test checks that when the initial containing block's writing-mode is 'horizontal-tb' and its 'direction' is 'ltr', then an absolutely positioned box (with 'left: auto', 'width: auto' and 'right: auto') whose containing block is the initial containing block must set 'left' to the static position. Whether such absolutely positioned box's 'writing-mode' is vertical or not is irrelevant." name="assert" />
+
+ <style type="text/css"><![CDATA[
+ html
+ {
+ direction: ltr;
+ }
+
+ div#green-overlapping-test
+ {
+ border-left: green solid 25px;
+ border-right: green solid 75px;
+ height: 100px;
+ left: auto;
+ position: absolute;
+ right: auto;
+ width: auto;
+ writing-mode: vertical-rl;
+ }
+
+ /*
+ "
+ If all three of 'left', 'width', and 'right' are 'auto': First set any 'auto' values for 'margin-left' and 'margin-right' to 0. Then, if the 'direction' property of the element establishing the static-position containing block is 'ltr' set 'left' to the static position and apply rule number three below; otherwise, set 'right' to the static position and apply rule number one below.
+ (...)
+ 3. 'width' and 'right' are 'auto' and 'left' is not 'auto', then the width is shrink-to-fit . Then solve for 'right'
+ "
+ 10.3.7 Absolutely positioned, non-replaced elements
+ http://www.w3.org/TR/CSS21/visudet.html#abs-non-replaced-width
+
+ So:
+
+ auto : left
+ +
+ 0px : margin-left
+ +
+ 25px : border-left-width
+ +
+ 0px : padding-left
+ +
+ auto : width
+ +
+ 0px : padding-right
+ +
+ 75px : border-right-width
+ +
+ 0px : margin-right
+ +
+ auto : right
+ ====================
+ : width of containing block (width of Initial Containing Block)
+
+ becomes
+
+ 8px : left
+ +
+ 0px : margin-left
+ +
+ 25px : border-left-width
+ +
+ 0px : padding-left
+ +
+ 0px : width (shrink-to-fit)
+ +
+ 0px : padding-right
+ +
+ 75px : border-right-width
+ +
+ 0px : margin-right
+ +
+ solve : right
+ ====================
+ : width of containing block (width of Initial Containing Block)
+ */
+
+ div#red-overlapped-reference
+ {
+ background-color: red;
+ height: 100px;
+ width: 100px;
+ }
+ ]]></style>
+ </head>
+
+ <body>
+
+ <p>Test passes if there is a filled green square and <strong>no red</strong>.</p>
+
+ <div id="green-overlapping-test"></div>
+
+ <div id="red-overlapped-reference"></div>
+
+ </body>
+</html>