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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 17:32:43 +0000 |
| commit | 6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch) | |
| tree | a68f146d7fa01f0134297619fbe7e33db084e0aa /testing/web-platform/tests/css/CSS2/visuren/fixed-pos-stacking-001.xht | |
| parent | Initial commit. (diff) | |
| download | thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip | |
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/CSS2/visuren/fixed-pos-stacking-001.xht')
| -rw-r--r-- | testing/web-platform/tests/css/CSS2/visuren/fixed-pos-stacking-001.xht | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/CSS2/visuren/fixed-pos-stacking-001.xht b/testing/web-platform/tests/css/CSS2/visuren/fixed-pos-stacking-001.xht new file mode 100644 index 0000000000..1912d70938 --- /dev/null +++ b/testing/web-platform/tests/css/CSS2/visuren/fixed-pos-stacking-001.xht @@ -0,0 +1,44 @@ +<!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: fixed positioning makes a stacking context</title> + + <link rel="help" href="http://www.w3.org/TR/CSS22/visuren.html#z-index" title="9.9.1 Specifying the stack level: the 'z-index' property" /> + <link rel="help" href="http://www.w3.org/TR/CSS22/changes.html#s.9.9.1" title="C.1 Changes since the Recommendation of 7 June 2011" /> + <meta name="assert" content="auto The stack level of the generated box in the current stacking context is 0. If the box has 'position: fixed' or if it is the root, it also establishes a new stacking context." /> + <link rel="match" href="fixed-pos-stacking-001-ref.xht" /> + <link rel="author" title="Bert Bos" href="mailto:bert@w3.org" /> + + + <style type="text/css"> + div {width: 5em; height: 2em} + + /* absolute with 'z-index: auto' does not create a stacking context */ + #absolute {position: absolute; left: 1em; top: 3em; background: green} + #absolute div {position: absolute} + #absolute div div {position: absolute; z-index: -1; background: red} + + /* fixed with 'z-index: auto' *does* create a stacking context */ + #fixed {position: fixed; left: 10em; top: 3em; background: red} + #fixed div {position: absolute} + #fixed div div {position: absolute; z-index: -1; background: green} + </style> + </head> + + <body> + <p>There should be no red.</p> + + <div id="absolute"> + <div> + <div></div> + </div> + </div> + + <div id="fixed"> + <div> + <div></div> + </div> + </div> + </body> +</html> |