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<!DOCTYPE html>
<title>CSS Basic User Interface Test: UA style interactivity for dialog:modal</title>
<link rel="help" href="https://drafts.csswg.org/css-ui-4/#inertness">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<dialog id="t1"></dialog>
<dialog id="t2" inert></dialog>
<div inert>
<dialog id="t3"></dialog>
</div>
<dialog id="d4">
<div id="t4" inert></div>
</dialog>
<dialog id="t5" style="interactivity:inert"></dialog>
<script>
test((t) => {
t.add_cleanup(() => { t1.close(); });
assert_equals(getComputedStyle(t1).interactivity, "auto", "before showModal");
t1.showModal();
assert_equals(getComputedStyle(t1).interactivity, "auto", "after showModal");
}, "UA dialog:modal interactivity rule");
test((t) => {
t.add_cleanup(() => { t2.close(); });
assert_equals(getComputedStyle(t2).interactivity, "inert", "before showModal");
t2.showModal();
assert_equals(getComputedStyle(t2).interactivity, "inert", "after showModal");
}, "UA [inert] rule wins over UA dialog:modal inert rule");
test((t) => {
t.add_cleanup(() => { t3.close(); });
assert_equals(getComputedStyle(t3).interactivity, "inert", "before showModal");
t3.showModal();
assert_equals(getComputedStyle(t3).interactivity, "auto", "after showModal");
}, "UA dialog:modal rule overriding inherited [inert] 'interactivity:inert' rule");
test((t) => {
t.add_cleanup(() => { d4.close(); });
assert_equals(getComputedStyle(t4).interactivity, "inert", "before showModal");
d4.showModal();
assert_equals(getComputedStyle(t4).interactivity, "inert", "after showModal");
}, "UA [inert] rule overriding inherited dialog:modal 'interactivity:auto' rule");
test((t) => {
t.add_cleanup(() => { t5.close(); });
assert_equals(getComputedStyle(t5).interactivity, "inert", "before showModal");
t5.showModal();
assert_equals(getComputedStyle(t5).interactivity, "inert", "after showModal");
}, "Author 'interactivity:inert' overrides UA dialog:modal 'interactivity:auto' rule");
</script>
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