<!DOCTYPE html><html><head>
<title>:nth-child() pseudo-class with hidden elements</title>
<style type="text/css">
line { display: block; }
[type~=match] { background: red; }
line:nth-child(3n-1) { background: lime; }
[hidden] { display: none; }
</style>
<link rel="author" title="Ian Hickson" href="mailto:ian@hixie.ch">
<link rel="help" href="https://www.w3.org/TR/css3-selectors/#selectors">
<meta name="flags" content=" namespace">
</head>
<body>
<test xmlns="http://www.example.org/">
<line type="">This line should be unstyled.</line>
<line type="match"></line>
<line type="">This line should be unstyled.</line>
<line type="">This line should be unstyled.</line>
<line type="match"></line>
<line type="">This line should be unstyled.</line>
<line type="" hidden="hidden">This line should be unstyled.</line>
<line type="match"></line>
<line type="">This line should be unstyled.</line>
<line type="">This line should be unstyled.</line>
<line type="match"></line>
<line type="">This line should be unstyled.</line>
<line type="" hidden="hidden">This line should be unstyled.</line>
<line type="match" hidden="hidden"></line>
<line type="">This line should be unstyled.</line>
<line type="">This line should be unstyled.</line>
<line type="match"></line>
<line type="">This line should be unstyled.</line>
<line type="">This line should be unstyled.</line>
<line type="match"></line>
<line type="">This line should be unstyled.</line>
</test>
</body></html>