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Test Info:

<!DOCTYPE html>
<meta charset="utf-8">
<title>CSS Selectors: ID selectors</title>
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/parsing-testcommon.js"></script>
<script>
test_valid_selector('h1#chapter1');
test_valid_selector('#chapter1');
test_valid_selector('*#z98y',
['*#z98y', '#z98y']);
</script>