[1] [selectors-4] Add :is(), resolves #1170 (LeaVerou著, 2017-12-02 06:06:13 +09:00) https://github.com/w3c/csswg-drafts/commit/5948b1ce37463aa7f87fede040fac9dd2c233329

[2] [selectors] Functional pseudo-class like :matches() with 0 specificity · Issue #1170 · w3c/csswg-drafts (2017-12-05 17:47:57 +09:00) https://github.com/w3c/csswg-drafts/issues/1170

[3] [selectors-4] Add :is() example in specificity section, and add it in… (LeaVerou著, 2017-12-02 06:12:09 +09:00) https://github.com/w3c/csswg-drafts/commit/a9fddaf185d9885bd657cd222956bccc35486939