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Test Info: Warnings
- This test has a WPT meta file that expects 1 subtest issues.
- This WPT test may be referenced by the following Test IDs:
- /css/css-variables/revert-layer-in-fallback.html - WPT Dashboard Interop Dashboard
<!DOCTYPE html>
<title>CSS Custom Properties: Using revert-layer in fallbacks</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<style>
@layer {
#child {
--x:PASS;
margin: 1px;
padding-left: 1px;
}
}
@layer {
#parent {
--x:FAIL;
margin: -1px;
padding-left: -1px;
}
#child {
--x: var(--unknown, revert-layer);
margin: var(--unknown, revert-layer);
padding-left: var(--unknown, revert-layer);
}
}
</style>
<div id=parent>
<div id=child>
</div>
</div>
<pre id=out>
</pre>
<script>
test((x) => {
assert_equals(getComputedStyle(child).getPropertyValue('--x'), 'PASS');
}, 'var(--unknown, revert-layer) in custom property');
test((x) => {
assert_equals(getComputedStyle(child).getPropertyValue('margin'), '1px');
}, 'var(--unknown, revert-layer) in shorthand');
test((x) => {
assert_equals(getComputedStyle(child).getPropertyValue('margin-left'), '1px');
}, 'var(--unknown, revert-layer) in shorthand observed via longhand');
test((x) => {
assert_equals(getComputedStyle(child).getPropertyValue('padding-left'), '1px');
}, 'var(--unknown, revert-layer) in longhand');
</script>