[w3ctag/design-reviews] CSS Overflow: scrollbar-gutter (#520)

Hola TAG!

I'd like to request a TAG review of `scrollbar-gutter`.

The `scrollbar-gutter` property gives control to Web authors over the presence of scrollbar gutters separately from the ability to control the presence of scrollbars provided by the `overflow` property. This allows authors to avoid layout changes when the content size changes, while also avoiding ugly visuals when scrolling isn't needed.

  - Specification URL: https://www.w3.org/TR/css-overflow-4/#scollbar-gutter-property

  - Tests: no WPT tests yet (working on them!)
  - Primary contacts (and their relationship to the specification):
      - CSSWG for the spec (editors: @dbaron @frivoal)
      - [Felipe Erias](felipeerias) (Blink/Chromium implementation)
  - Organization(s)/project(s) driving the specification: CSSWG
  - Key pieces of existing multi-stakeholder review or discussion of this specification: 
      - Spec discussion at the CSSWG: https://github.com/w3c/csswg-drafts/issues/92#issuecomment-272567887

      - More detail about the `force` and `always` keywords: https://github.com/w3c/csswg-drafts/issues/4674#issuecomment-575027040

      - Since this property would make layouts more stable, it also benefits platform developers working on layout tests: https://github.com/web-platform-tests/wpt/issues/10972#issuecomment-395262455

  - External issue trackers:
      - Chromium: https://bugs.chromium.org/p/chromium/issues/detail?id=710214

      - WebKit: https://bugs.webkit.org/show_bug.cgi?id=167335


Further details:

  - [X] I have reviewed the TAG's [API Design Principles](https://w3ctag.github.io/design-principles/)
  - Relevant time constraints or deadlines: ideally by July 2020
  - The group where the work on this specification is currently being done: CSSWG

We'd prefer the TAG provide feedback as

  💬 leave review feedback as a **comment in this issue** and @-notify @felipeerias

-- 
You are receiving this because you are subscribed to this thread.
Reply to this email directly or view it on GitHub:
https://github.com/w3ctag/design-reviews/issues/520