Re: [css3-grid-layout] grid-descendant grid items

I like it.

However, if we want things to work "auto-magically", we should consider 
another kind of kind of "automatic" grid-span based on the size of an object 
(ie: an element spans as many rows/columns as needed for the content to fit 
in; eg a (min-width: 500px) object would span two columns of 300px). If the 
"subgrid" behavior takes the auto value (why not) I propose to either rename 
my own "grid-*-span: auto" proposal [1] to "grid-*-span: fit" or to 
accomodate its definition to take "display: subgrid" in consideration.

[1] http://lists.w3.org/Archives/Public/www-style/2012Aug/0138.html



-----Message d'origine----- 

Basically what's needed is a way for a grid item to itself be
a grid whose items in turn participate in its parent's grid.
Here's a (very rough) proposal:

   * Set the grid-span initial value to 'auto'. Have it generally
     compute to 1.
   * Define 'display: subgrid' to be an element that
      * itself is a grid element
      * determines its own number of rows and columns and uses
        that as its grid-span in its parent grid
      * has its items participate in the sizing of the parent grid