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<!DOCTYPE html>
<link rel="help" title="6.5 dynamic-range" href="https://www.w3.org/TR/mediaqueries-5/#dynamic-range">
<script type="text/javascript" src="/resources/testharness.js"></script>
<script type="text/javascript" src="/resources/testharnessreport.js"></script>
<script type="text/javascript" src="resources/matchmedia-utils.js"></script>
<script>
query_should_be_known("(dynamic-range: standard)");
query_should_be_known("(dynamic-range: high)");
query_should_be_known("(video-dynamic-range: standard)");
query_should_be_known("(video-dynamic-range: high)");
query_should_be_unknown("(dynamic-range)");
query_should_be_unknown("(dynamic-range: 0)");
query_should_be_unknown("(dynamic-range: 10px)");
query_should_be_unknown("(dynamic-range: invalid)");
query_should_be_unknown("(video-dynamic-range)");
query_should_be_unknown("(video-dynamic-range: 0)");
query_should_be_unknown("(video-dynamic-range: 10px)");
query_should_be_unknown("(video-dynamic-range: invalid)");
test(() => {
let match_standard = window.matchMedia("(dynamic-range: standard)");
assert_true(match_standard.matches);
}, "Check that dynamic-range always matches 'standard'");
test(() => {
let match_standard = window.matchMedia("(video-dynamic-range: standard)");
assert_true(match_standard.matches);
}, "Check that video-dynamic-range always matches 'standard'");
test(() => {
let match_invalid = window.matchMedia("(video-dynamic-range: invalid)");
assert_false(match_invalid.matches);
}, "Check that video-dynamic-range is not 'invalid'");
</script>
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