<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd"><html xmlns="http://www.w3.org/1999/xhtml"><head><title>border collapse dynamic change to colgroup border color</title>
<link rel="author" title="Bernd Mielke" href="mailto:bmlk@gmx.de" />
<style type="text/css"><![CDATA[
td { border: 10px green solid;}
table {margin: 30px; border-collapse:collapse}
colgroup#reference {border:solid yellow 11px}
]]></style>
</head>
<body>

<p>There should be a continuous solid yellow border around the center column. All other borders should be a continuous solid green.</p>

<table>
<colgroup><col /></colgroup>
<colgroup id="reference"><col /></colgroup>
<colgroup><col /></colgroup>
<tbody><tr><td>c11</td><td>c12</td><td>c13</td></tr></tbody>
 <tbody>

 <tr><td>c21</td><td>c22</td><td>c23</td></tr>
 </tbody>
 <tbody>
 <tr><td>c31</td><td>c32</td><td>c33</td></tr>
 </tbody>
</table>

</body></html>