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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
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| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-19 01:47:29 +0000 |
| commit | 0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d (patch) | |
| tree | a31f07c9bcca9d56ce61e9a1ffd30ef350d513aa /testing/web-platform/tests/css/css-contain/contain-content-002.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.tar.xz firefox-esr-0ebf5bdf043a27fd3dfb7f92e0cb63d88954c44d.zip | |
Adding upstream version 115.8.0esr.upstream/115.8.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'testing/web-platform/tests/css/css-contain/contain-content-002.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-contain/contain-content-002.html | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-contain/contain-content-002.html b/testing/web-platform/tests/css/css-contain/contain-content-002.html new file mode 100644 index 0000000000..7468df7cde --- /dev/null +++ b/testing/web-platform/tests/css/css-contain/contain-content-002.html @@ -0,0 +1,55 @@ +<!DOCTYPE html> + + <meta charset="UTF-8"> + + <title>CSS Containment Test: 'contain: content' and margin collapsing</title> + + <link rel="author" title="Gérard Talbot" href="http://www.gtalbot.org/BrowserBugsSection/css21testsuite/"> + <link rel="help" href="https://www.w3.org/TR/css-contain-1/#contain-property"> + <link rel="match" href="reference/contain-paint-ifc-011-ref.html"> + + <meta content="This test checks that a block element with 'contain: content' establishes a new block formatting context which is independent and separate from others. This causes margin collapsing to be ineffective among vertically-adjacent boxes. In this test, the top margin of parent boxes and top margin of their respective first in-flow child do not collapse. Also, in this test, the bottom margin of the last in-flow child of boxes and bottom margin of their respective parent boxes do not collapse." name="assert"> + + <style> + div + { + contain: content; + margin: 30px 0px; + } + + div#grand-grand-parent-orange + { + background-color: orange; + } + + div#grand-parent-blue + { + background-color: blue; + } + + div#parent-lime + { + background-color: lime; + } + + div#collapse-through-child /* margin collapsing through element */ + { + contain: none; + } + </style> + + <p>Test passes if there are 5 horizontal stripes across the page in this order (from top to bottom): an orange stripe, a blue stripe, a bright green stripe, a blue stripe and then an orange stripe. + + <div id="grand-grand-parent-orange"> + + <div id="grand-parent-blue"> + + <div id="parent-lime"> + + <div id="collapse-through-child"></div> + + </div> + + </div> + + </div> |