HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Column spans</title>
<style>
td, th {
border: 1px solid #999;
padding: 0.1em 1em;
}
</style>
</head>
<body>
<table>
<tr>
<th colspan="2">Carnivores</th>
<th>Primates</th>
</tr>
<tr>
<td>Tiger</td>
<td>Grey Wolf</td>
<td>Indri</td>
</tr>
<tr>
<td>Cheetah</td>
<td>Cape hunting dog</td>
<td>Sifaka</td>
</tr>
<tr>
<td>Caracal</td>
<td>Red fox</td>
<td>Brown lemur</td>
</tr>
<tr>
<td>Wildcat</td>
<td>Fennec</td>
<td>Dwarf lemur</td>
</tr>
</table>
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</body>
</html>