Hi David, Just so I'm certain, there's no way for more than two cells to overlap in a single grid slot, is there?
Thanks, Fady Samuel On Thu, May 20, 2010 at 4:43 PM, David Hyatt <hy...@apple.com> wrote: > On May 20, 2010, at 3:38 PM, Fady Samuel wrote: > > > So what are the rules for stacking here? do the cells stack in the order > in which they appear in the HTML? > > > > Correct, although note that backgrounds paint behind foregrounds, and hit > testing works the same way, so it's not as simple as saying that cell 7 is > always above cell 5. They're interleaved, so from bottom to top: > > Cell 5 background > Cell 7 background > Cell 5 foreground (the number "5" in this example) > Cell 7 foreground (the number "7" in this example) > > That's why if you hover over the actual number 5 in that example it will > light up, but if you're in the background area overlap, the number 7 will > light up. > > http://www.w3.org/TR/CSS21/zindex.html > > Therefore you do have to know about all the cells at the position, since > when you're in the "foreground" phase of hit testing, cell 7 will say "Nope, > you're not inside my foreground", and so you then need to check cell 5, > which will say "Yes, you are inside my foreground." > > The grid structure just isn't expressive enough. It needs to be patched to > track all cells in a given row/column instead of just the first one. > > dave > (hy...@apple.com) > >
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