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Re: css layout should be symmetrical

From: Vadim Plessky <lucy-ples@mtu-net.ru>
Date: Thu, 21 Feb 2002 17:21:16 +0300
To: Rijk van Geijtenbeek <rijk@iname.com>, www-style@w3.org
Message-ID: <auto-000020198147@umail.ru>
On Wednesday 20 February 2002 18:58, Rijk van Geijtenbeek wrote:
|   Hello Ian,
|
|   On Wednesday, February 20, 2002 you wrote:
|   > Vadim Plessky wrote:
|   ..
|   >> Some people assumed that 'table-cell', 'table-row', etc. should be
|   >> used for HTML and XHTML as well.
|   >> To my best understandimng, this is wrong.
|   >> Tables in CSS should be used only with XML!
|   >
|   > That is incorrect. I am curious as to what gave you that impression?
|
|   That's not too hard to find...
|
|     " [...] in HTML 4.0, the semantics of the various table elements
|     (TABLE, CAPTION, THEAD, TBODY, TFOOT, COL, COLGROUP, TH, and TD) are
|     well-defined. In other document languages (such as XML
|     applications), there may not be pre-defined table elements.
|     Therefore, CSS2 allows authors to "map" document language elements
|     to table elements via the 'display' property. For example, the
|     following rule makes the FOO element act like an HTML TABLE element
|     and the BAR element act like a CAPTION element:
|
|     [...] the table model consists of tables, captions, rows, row
|     groups, columns, column groups, and cells.
|
|     The CSS model does not require that the document language include
|     elements that correspond to each of these components. For document
|     languages (such as XML applications) that do not have pre-defined
|     table elements, authors must map document language elements to table
|     elements; this is done with the 'display' property. The following
|     'display' values assign table semantics to an arbitrary element:
|      [...]
|     User agents may ignore these 'display' property values for HTML
|     documents, since authors should not alter an element's expected
|     behavior."
|
|   http://www.w3.org/TR/REC-CSS2/tables.html
|
|
|   IMO, this does not mean that table-properties *can't* be used in HTML
|   documents, but it seems clear that their inclusion in CSS2 was meant
|   to make it possible to achieve HTML-like tables with XML documents. It
|   was meant to change the display type of HTML elements to change the
|   their behavior. But there are 'may's and 'should's here, I don't see
|   any 'must's or 'must not's.
|

Rijk,

Thanks a lot for clarification and quotes!
I hope my "should" was meaning that you *can* use CSS2 tables in HTML, but 
that's not recommended.
Probably, we need clarifications/errata correction for 'may's and 'should's 
:-))

|
|   Greetings,
|    Rijk                            mailto:rijk@iname.com
|
|   Mot du Jour:
|   Ignorance can be cured.  Stupid is forever.

Cheers,
-- 

Vadim Plessky
http://kde2.newmail.ru  (English)
33 Window Decorations and 6 Widget Styles for KDE
http://kde2.newmail.ru/kde_themes.html
KDE mini-Themes
http://kde2.newmail.ru/themes/
Received on Thursday, 21 February 2002 09:20:59 GMT

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