CSS Selectors: add "Grouping Selectors"

[ramiy]

Related:

mdn/sprints#2233
mdn/sprints#2164

[chrisdavidmills]

The Travis run failed because you are trying to use a group type that doesn't exist. I'd suggest just using Basic Selectors instead of Grouping Selectors, as it is a pretty basic type.

[ramiy]

@chrisdavidmills

How can I add a new group type for Grouping Selectors.

See related links:

https://wiki.developer.mozilla.org/en-US/docs/Web/CSS/CSS_Selectors

https://wiki.developer.mozilla.org/en-US/docs/Web/CSS/Universal_selectors
https://wiki.developer.mozilla.org/en-US/docs/Web/CSS/Type_selectors

and the new grouping selectors:

https://wiki.developer.mozilla.org/en-US/docs/Web/CSS/Grouping_selectors

[ExE-Boss]

Selectors 4 has renamed this to “Selector list”.

[chrisdavidmills]

Ah, thanks for sorting that out @ExE-Boss . You are right that we should use Selector list.

@ramiy to add new group type, you add it to the group list at

https://github.com/mdn/data/blob/e82e4caa73d88b0edcb52ae579c75e479c320997/css/definitions.json

[chrisdavidmills]

OK, let's try that out for size. Thanks @ramiy !

[ExE-Boss]

Next, we’ll need to update KumaScript’s CSSRef macro to account for the new sidebar group, like I did for combinators in mdn/kumascript#942.

[ExE-Boss]

A new version of mdn‑data has to be published before this will show up on MDN (because of mdn/kumascript#1126)

[ramiy]

The last version released over 3 months ago... It's time to release a new version.