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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>CSS Selectors :first-child</title>
<link rel="help" href="https://drafts.csswg.org/selectors-4/#the-first-child-pseudo">
<script src="/resources/testharness.js"></script>
<script src="/resources/testharnessreport.js"></script>
<!--
See also:
* child-indexed-pseudo-class.html
* child-indexed-no-parent.html
* invalidation/first-child-last-child.html
-->
<body>
<div>
<div id="target1">Whitespace nodes should be ignored.</div>
</div>
<div>
<div id="target2">There is the second child element.</div>
<blockquote></blockquote>
</div>
<div>
<!-- -->
<div id="target3">A comment node should be ignored.</div>
</div>
<div>
.
<div id="target4">Non-whitespace text node should be ignored.</div>
</div>
<div>
<blockquote></blockquote>
<div id="target5" data-expected="false">The second child should not be matched.</div>
</div>
<script>
for (let i = 1; i <= 5; ++i) {
let target = document.querySelector(`#target${i}`);
test(() => {
if (target.dataset.expected == 'false')
assert_false(target.matches(':first-child'));
else
assert_true(target.matches(':first-child'));
}, target.textContent);
}
</script>
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