Re: [csswg-drafts] [css-align][css-grid][css-flexbox] wrong assumptions about baselines only occurring in the inline axis

OK, so I sat down with some people at Microsoft to go over this, and 
it seems we have a problem: block-axis baselines aren't really a thing
 that should exist for a box. The problem is illustrated by this 
example: 

Imagine a grid with three items in a column:
  1. First item is horizontal-tb
  2. Second item is vertical-lr
  3. Third item is vertical-rl
If we try to baseline-align the first column, which baseline do we use
 for the horizontal-tb item? The vertical-lr and vertical-rl items are
 in independent baseline-sharing groups: their first baselines are on 
the left and right sides of the column, respectively. But the 
horizontal-tb item has no reasonable way to choose left or right as 
corresponding to "first".

So my conclusion is that we should remove the concept of block-axis 
baselines. A grid column might have baseline alignment along its block
 axis among items with orthogonal flows, but it does not propagate 
that up to the grid container.

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