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firefox/testing/web-platform/tests/css/css-values/tree-counting/sibling-function-invalidation.html
Daniel Baumann 5e9a113729
Adding upstream version 140.0.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
2025-06-25 09:37:52 +02:00

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HTML

<!DOCTYPE html>
<title>CSS Values and Units Test: Invalidation for sibling-index() and sibling-count()</title>
<link rel="help" href="https://drafts.csswg.org/css-values-5/#tree-counting">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
#t1 {
width: calc(10px * sibling-index());
height: 50px;
background: teal;
}
</style>
<div>
<div id="rm1"></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div id="t1"></div>
</div>
<script>
test(() => assert_equals(t1.offsetWidth, 60), "Initially 6th sibling");
test(() => {
rm1.remove();
assert_equals(t1.offsetWidth, 50);
}, "5th sibling after removal");
</script>
<style>
#t2 {
width: 50px;
height: calc(10px * sibling-count());
background: teal;
}
</style>
<div>
<div id="t2"></div>
<div></div>
<div></div>
<div></div>
<div></div>
<div id="rm2"></div>
</div>
<script>
test(() => assert_equals(t2.offsetHeight, 60), "Initially 6 siblings");
test(() => {
rm2.remove();
assert_equals(t2.offsetHeight, 50);
}, "5 siblings after removal");
</script>