<!DOCTYPE html><html><head>
<title>:nth-child() pseudo-class</title>
<style type="text/css">.red { background-color : red }
ul > li:nth-child(odd) { background-color : lime }
ol > li:nth-child(even) { background-color : lime }
table.t1 tr:nth-child(-n+4) { background-color : lime }
table.t2 td:nth-child(3n+1) { background-color : lime }</style>
<link rel="author" title="Daniel Glazman" href="http://glazman.org/">
<link rel="help" href="https://www.w3.org/TR/css3-selectors/#selectors">
<meta name="flags" content="">
</head>
<body>
<ul>
<li class="red"></li>
<li>Second list item</li>
<li class="red"></li>
<li>Fourth list item</li>
<li class="red"></li>
<li>Sixth list item</li>
</ul>
<ol>
<li>First list item</li>
<li class="red"></li>
<li>Third list item</li>
<li class="red"></li>
<li>Fifth list item</li>
<li class="red"></li>
</ol>
<div>
<table border="1" class="t1">
<tbody><tr class="red"></tr>
<tr class="red"></tr>
<tr class="red"></tr>
<tr class="red"></tr>
<tr>
<td>5.1</td>
<td>5.2</td>
<td>5.3</td>
</tr>
<tr>
<td>6.1</td>
<td>6.2</td>
<td>6.3</td>
</tr>
</tbody></table>
<table class="t2" border="1">
<tbody><tr>
<td class="red"></td>
<td>1.2</td>
<td>1.3</td>
<td class="red"></td>
<td>1.5</td>
<td>1.6</td>
<td class="red"></td>
<td>1.8</td>
</tr>
<tr>
<td class="red"></td>
<td>2.2</td>
<td>2.3</td>
<td class="red"></td>
<td>2.5</td>
<td>2.6</td>
<td class="red"></td>
<td>2.8</td>
</tr>
<tr>
<td class="red"></td>
<td>3.2</td>
<td>3.3</td>
<td class="red"></td>
<td>3.5</td>
<td>3.6</td>
<td class="red"></td>
<td>3.8</td>
</tr>
</tbody></table>
</div>
</body></html>