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[css3-layout] New WD for Template Layout

From: Bert Bos <bert@w3.org>
Date: Thu, 29 Apr 2010 20:17:53 +0200
To: www-style@w3.org
Message-Id: <201004292017.54191.bert@w3.org>
The CSS WG just published an update of the Template Layout module:

    http://www.w3.org/TR/2010/WD-css3-layout-20100429/

There are no big changes, the main changes are:

  - A new co-editor, C├ęsar Acebal.
  - Explanation of the meaning of the 'gr' unit in various contexts.
    (The unit itself is defined in the Grid Positioning draft[1].)
  - Added an open issue about whether to set writing mode individually
    for each slot.
  - Explained that a template element that is broken over two pages may
    have different widths on both pages.
  - Added missing definition of the intrinsic height of a row consisting
    of just '.'

and various editorial changes (typos, bibliography...)

We welcome comments. If possible, please send them to this mailing list, 
<www-style@w3.org>. And if you do, please start the Subject line with

    [css3-layout]

as I did on this message.


About the relation to Tables, Flexible Box Layout and Grid Positioning:

The WG is investigating if the combined features of Template Layout, 
Flexible Box Layout[2], Grid Positioning[1] and Tables[3] cannot be 
expressed with fewer properties and fewer separate drafts.

In particular, it may be possible to distribute the definition of 
the 'gr' unit from Grid Positioning over the Tables and Multi-column[4] 
specifications; to turn the space distribution from flexbox 
('box-flex-group' and 'box-flex') into a feature of tables and 
templates; and to generalize tables to include the size algorithms from 
flexbox and templates (maybe with 'table-layout: flexible'). Then 
flexbox becomes just a special case of tables, templates are a way to 
position elements but otherwise also refer to tables, and we may have 
one, two or even three drafts less to maintain and implement.


[1] http://www.w3.org/TR/2007/WD-css3-grid-20070905/
[2] http://www.w3.org/TR/2009/WD-css3-flexbox-20090723/
[3] http://www.w3.org/TR/2009/CR-CSS2-20090908/tables.html
[4] http://www.w3.org/TR/2009/CR-css3-multicol-20091217/



Bert
-- 
  Bert Bos                                ( W 3 C ) http://www.w3.org/
  http://www.w3.org/people/bos                               W3C/ERCIM
  bert@w3.org                             2004 Rt des Lucioles / BP 93
  +33 (0)4 92 38 76 92            06902 Sophia Antipolis Cedex, France
Received on Thursday, 29 April 2010 18:17:42 GMT

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