From c61ede784ee39107a0468fb3e14ae0c4110bbad4 Mon Sep 17 00:00:00 2001 From: Rune Lillesveen Date: Tue, 9 Jan 2024 17:55:44 +0100 Subject: [PATCH] [css-contain-3] No query container for unknown features (#7551) (#9776) From [1]: "RESOLVED: No container is valid for unknown queries" [1] https://github.com/w3c/csswg-drafts/issues/7551#issuecomment-1854385652 Co-authored-by: Rune Lillesveen --- css-contain-3/Overview.bs | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/css-contain-3/Overview.bs b/css-contain-3/Overview.bs index e0f8fb01575f..bb0b1004c1ba 100644 --- a/css-contain-3/Overview.bs +++ b/css-contain-3/Overview.bs @@ -612,7 +612,9 @@ Container Queries: the ''@container'' rule is selected from among the element’s ancestor [=query containers=] that are established as a valid [=query container=] for all the [=container features=] - in the <>. + in the <>. If the <> contains unknown + or unsupported [=container feature=]s, no [=query container=] will be + selected. The optional <> filters the set of [=query containers=] considered to just those with a matching [=query container name=].