[css-grid] Positioned items don't participate in the grid container baseline

[mrego]

The grid container baseline definition talks generally about "grid items".

IMHO, it would be nice to explicitly exclude absolutely-positioned grid items, as they don't participate on the layout of the grid as stated in 10.1:

does not contribute to the sizing of any grid tracks or affect the size/configuration of the grid in any way

[dholbert]

FWIW, I believe this is already pretty unambiguous in the spec.

There is no such thing as an "absolutely positioned grid item", spec-wise. The term "grid item" is already defined as only including in-flow children. This is explicit in the section on grid items as well as the section on abspos children:

Loosely speaking, the grid items of a grid container are boxes representing its in-flow contents
https://drafts.csswg.org/css-grid/#grid-item
[...]
An absolutely-positioned child of a grid container is out-of-flow and not a grid item
https://drafts.csswg.org/css-grid/#static-position

[mrego]

Yeah I was missing the "each in-flow child of a grid container becomes a grid item" in the definition.
This is not needed indeed. Thanks!