[css-position] Does position:fixed create a stacking context?

[Loirooriol]

From Minutes Telecon 2015-07-01:

Resolved: Make position: fixed a full stacking context

• Rossen will write the text change in place it in the Positioning spec. Bert will then take the same text and add it as an errata to CSS 2.

I found the changes in the CSS 2 spec.

However, the definition of z-index: auto in CSS Position does not have that change, and I can't find anything which explains that position: fixed creates a stacking context.

Did the WG change their minds? Did Rossen forgot to update CSS Position?

[Tyler-H]

This is more pressing now; people are starting to ask questions about this behavior and the spec still says no. This is leading to differing behaviors in Chrome vs Firefox, etc. http://stackoverflow.com/questions/40551057/positionfixed-within-positionfixed-which-browsers-right/

[atanassov]

You're right, this was supposed to be merged into the positioning spec as well - reflected now. Thanks.

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