While there are notional "rowgroups" there are no explicit arbitrary rowgroups in HTML nor in XHTML because rows are explicit in tables. colgroups, on the other hand, exist because HTML / XHTML needs a way of referring to columns.
Could you please provide a concrete example of what you are looking for, along with a description of what the advantages would be? > From: Jim Jewett <[EMAIL PROTECTED]> > To: [email protected] > Subject: nesting colgroup and rowgroups > Date: Thu, 2 Feb 2006 11:32:49 -0500 > Message-ID: <[EMAIL PROTECTED]> > X-Archived-At: http://www.w3.org/mid/[EMAIL PROTECTED] > > The colgroup example discusses grouping permanent and local contact > information separately. Even within these groupings, there may be > subgroupings, such as physical address vs phone number. > > I would prefer that a colgroup could contain other colgroups (and a > rowgroup other rowgroups). If this has been rejected, I would like to > see at least a brief summary of the reasoning behind the limit in that > section of the spec. > >
