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Test Info:
- This WPT test may be referenced by the following Test IDs:
- /css/css-cascade/scope-supports.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>@scope - inner @supports</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
@scope (.a) {
@supports (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 @supports are scoped');
</script>