Chromium

• Changed: Make <tr> with transform be a containing block.

  Status	Proposed	→	Enabled by default
  Android	(n/a)	→	66
  Desktop	(n/a)	→	66

• Changed: Unprefix CSS Grid Layout gutter properties

  Status	In development	→	Enabled by default
  Android	(n/a)	→	66
  Desktop	(n/a)	→	66

• Changed: CSS Selectors 4 Pseudo-Class :matches()

  Status	No active development	→	Behind a flag
  Flag	False	→	True

• Added: CSS Selectors 4 Pseudo-Class :is()

  Status	No active development