[csswg-drafts] Pull Request: [css-contain] Be more rigorous about box vs element

frivoal has just submitted a new pull request for https://github.com/w3c/csswg-drafts:

== [css-contain] Be more rigorous about box vs element ==
Closes #4189

See https://github.com/w3c/csswg-drafts/pull/4190

Received on Monday, 12 August 2019 09:53:35 UTC