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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 09:22:09 +0000 |
| commit | 43a97878ce14b72f0981164f87f2e35e14151312 (patch) | |
| tree | 620249daf56c0258faa40cbdcf9cfba06de2a846 /testing/web-platform/tests/css/css-contain/contain-style-counters-002.html | |
| parent | Initial commit. (diff) | |
| download | firefox-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>
Diffstat (limited to 'testing/web-platform/tests/css/css-contain/contain-style-counters-002.html')
| -rw-r--r-- | testing/web-platform/tests/css/css-contain/contain-style-counters-002.html | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/testing/web-platform/tests/css/css-contain/contain-style-counters-002.html b/testing/web-platform/tests/css/css-contain/contain-style-counters-002.html new file mode 100644 index 0000000000..48494ce2be --- /dev/null +++ b/testing/web-platform/tests/css/css-contain/contain-style-counters-002.html @@ -0,0 +1,68 @@ +<!DOCTYPE html> + + <meta charset="UTF-8"> + + <title>CSS Containment Test: 'contain: style' and counter (with 'display: contents')</title> + + <link rel="help" href="https://www.w3.org/TR/css-contain-1/#containment-style"> + <link rel=help href="https://github.com/w3c/csswg-drafts/issues/7392"> + <link rel="match" href="reference/contain-style-counters-001-ref.html"> + + <meta content="This test checks that when an element has 'contain: style', then counters which may be affecting its subtree are reset to 0 for such scope. In this test, the div#test does not generate a principal box because of 'display: contents'. Despite that particular condition, 'contain: style' will have an effect on div#test." name="assert"> + + <style> + div#create-counter + { + counter-reset: counter-of-span 9; + } + + /* + This creates a new counter identified as "counter-of-span" + and initially sets such counter to 9 (an entirely + arbitrary number). + */ + + div#test + { + contain: style; + display: contents; + font-size: 3em; + } + + /* + Other types of containment (size, layout, paint) have no + effect on box that do not generate a principal box which + is the case here with div#test because of 'display: contents'. + But in this test, 'contain: style' will apply and will + have a rendering effect on the counter. + */ + + div#test span + { + counter-increment: counter-of-span 5; + } + + /* + This increments the counter identified as "counter-of-span" + of the step value of 5 (an entirely arbitrary number) each + and every time there is a <span> descendant within the subtree + of div#test + */ + + div#test span::after + { + content: counter(counter-of-span); + } + /* + Now, the generated content after the span is set to the + current value of the counter identified as "counter-of-span" + */ + + </style> + + + <p>Test passes if there is the digit 5. + + <div id="create-counter"></div> + + <div id="test"><span></span></div> |