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<!DOCTYPE html>
<title>@scope - inner @container</title>
<link rel="help" href="https://drafts.csswg.org/css-cascade-6/#scope-atrule">
<link rel="help" href="https://drafts.csswg.org/css-contain-3/#container-rule">
<link rel="help" href="https://drafts.csswg.org/css-cascade-5/#scope-scope">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
main {
width: 100px;
height: 100px;
container-type: size;
}
@scope (.a) {
@container (width > 0px) {
:scope {
z-index: 1;
}
.b {
background-color: green;
}
}
}
</style>
<main>
<div class=a>
<div class=b>
</div>
</div>
<div class=b></div>
</main>
<script>
test(() => {
let a = document.querySelector('main > .a');
let b = document.querySelector('main > .a > .b');
assert_equals(getComputedStyle(a).zIndex, '1');
assert_equals(getComputedStyle(b).backgroundColor, 'rgb(0, 128, 0)');
let out_of_scope_b = document.querySelector('main > .b');
assert_equals(getComputedStyle(out_of_scope_b).backgroundColor, 'rgba(0, 0, 0, 0)');
}, 'Style rules within @container are scoped');
</script>
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