Used contain values different from none on the root or body elements will disable propagation of CSS properties from body as per specification[1]. [1]


Specification link

Final published standard: Recommendation, Living Standard, Candidate Recommendation, or similar final form

Status in Chromium


Enabled by default (tracking bug)

Consensus & Standardization

After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.



The relevant part of the spec is a correction of a W3C Recommendation.

Last updated on 2022-01-04