I'm trying to hide some col's in html code. Using MDN colgroup and col are added, and I'm playing with the style of the cols.
The <td>
with content text 'visible' is visible in all browsers (good), the with content text 'hidden' is visible in chrome (bad) and hidden in Firefox and Edge. (good).
Shortest code I could re-create problem is here:
<!doctype html>
<html>
<head>
<title>css example</title>
<style type='text/css'>
col.visible {}
col.hidden { visibility:collapse; }
</style>
</head>
<body>
<table border='1'>
<colgroup>
<col class='visible'>
<col class='hidden'>
<tbody>
<tr>
<td>visible</td>
<td>hidden</td>
</tr>
</tbody>
</colgroup>
</table>
</body>
</html>