[csswg-drafts] [css-contain-2] Spec is unclear about whether 0-sized boxes can be "relevant to the user" (since they have zero intersection area) (#5641)
[csswg-drafts] [css-position] ‘Sticky’ behavior is too limited as position scheme created from the elements nearest block level ancestor & margins (#2496)
[csswg-drafts] [cssom-view] The values of ScrollTop and ScrollLeft have been made implementation-defined, the spec needs to standard-define them. (#2704)
[csswg-drafts] Pull Request: [cssom] Don't serialize a shorthand if there are longhands with other property group / mapping logic in between the longhands of that shorthand.