Column groups
col and colgroup elements.
HTML
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>Column groups</title>
<style>
body {
font: 80%/1.5 arial, helvetica, sans-serif;
}
table {
border: 1px solid #668;
border-collapse: collapse;
caption-side: bottom;
}
td {
padding: 0.1em 2em;
border-spacing: 1em;
}
col.alternative {
background: #ddf;
}
</style>
</head>
<body>
<table>
<caption>Caption</caption>
<colgroup>
<col>
<col class="alternative">
<col>
<col class="alternative">
<col>
</colgroup>
<tr>
<td>This</td>
<td>That</td>
<td>The other</td>
<td>Lunch</td>
<td>Lunch</td>
</tr>
<tr>
<td>Ladybird</td>
<td>Locust</td>
<td>Lunch</td>
<td>Lunch</td>
<td>Lunch</td>
</tr>
<tr>
<td>Ladybird</td>
<td>Locust</td>
<td>Lunch</td>
<td>Lunch</td>
<td>Lunch</td>
</tr>
<tr>
<td>Ladybird</td>
<td>Locust</td>
<td>Lunch</td>
<td>Lunch</td>
<td>Lunch</td>
</tr>
<tr>
<td>Ladybird</td>
<td>Locust</td>
<td>Lunch</td>
<td>Lunch</td>
<td>Lunch</td>
</tr>
</table>
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</body>
</html>