On Apr 1, 2011, at 4:42 AM, Brian King wrote:
> I don't know why this works. And I don't know why it doesn't.
>
> I've always heard it as canon that you can't border a table row like: tr
> {border:1px solid black}, and I've accepted it. BUT.
>
> Why does this work in Firefox [3.6.13]: (I just sort of stumbled over it,
> and I take no credit for discovering it or not discovering it.)
>
> <style type="text/css">
> table { border-collapse: collapse; }
> tr {border:1px solid black;}
> </style>
> <table>
> <thead>
> <tr >
> <td>Data Element</td>
> <td>Data Element</td>
> <td>Data Element</td>
> </tr>
> </thead>
> </table>
>
> If I remove the table border-collapse, then I don't get a border. I will
> note, that NEITHER option works in IE [7.0.6001.18000].
<http://www.w3.org/TR/CSS21/tables.html#borders>
describes the differences, albeit in a not so clear way.
Much is rooted in the history of html tables (html 3.2 and html 4) and mutual
reverse engineering by different browsers.
IE < 8 handling of tables is more often than not contrary to specs.
Philippe
--
Philippe Wittenbergh
http://l-c-n.com/
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