<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Selectors Level 4: query using :is()</title>
<link rel="help" href="https://drafts.csswg.org/selectors/#matches">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<script src="/css/support/query-testcommon.js"></script>
</head>
<body>
<div id="a1" class="a">
<div class="b" id="b1"></div>
<div class="c" id="c1"></div>
<div class="c" id="d"></div>
<div class="e" id="e1"></div>
<div class="f" id="f1"></div>
<div class="g">
<div class="b" id="b2">
<div class="b" id="b3"></div>
</div>
</div>
<div class="h" id="h1"></div>
</div>
<div class="c" id="c2">
<div id="a2" class="a"></div>
<div class="e" id="e2"></div>
</div>
<script>
'use strict';
// Simple selector arguments are supported by :is
test_query_selector(document, '.a :is(.b, .c)',
['b1', 'c1', 'd', 'b2', 'b3']);
// Compound selector arguments are supported by :is
test_query_selector(document, '.a :is(.c#d, .e)',
['d', 'e1']);
// Complex selector arguments are supported by :is
test_query_selector(document, '.a :is(.e+.f, .g>.b, .h)',
['f1', 'b2', 'h1']);
// Nested selector arguments are supported by :is
test_query_selector(document, '.a+:is(.b+.f, :is(.c>.e, .g))',
'e2');
// Nested :where selector arguments are supported by :is
test_query_selector(document, '.a :is(:where(:where(.b ~ .c)))',
['c1', 'd']);
// Nested :not selector arguments are supported by :is
test_query_selector(document, '.b + :is(.c + .c + .c, .b + .c:not(span), .b + .c + .e) ~ .h',
['h1']);
</script>
</body>
</html>
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