The :lang CSS pseudo-class currently matches elements based on level 3 specs logic, which describes a prefix-matching rule to match language values. The level 4 spec changes this matching logic, supporting language priority lists and language range matching (according to the specs of the extended filtering operation from RFC4647 - Matching of language tags - section 3.3.2, and the simple priority list matching described on section 2.3)
Specification
Specification currently under development in a Working Group
Status in Chromium
In development
(tracking bug)
Consensus & Standardization
After a feature ships in Chrome, the values listed here are not guaranteed to be up to date.
- No signal
- Shipped/Shipping
- No signals
Owner
Search tags
css, lang, pseudo,Last updated on 2022-04-28