LGTM2 From: Rick Byers <[email protected]> Sent: Monday, March 30, 2026 12:22 PM To: Rune Lillesveen <[email protected]> Cc: blink-dev <[email protected]> Subject: [EXTERNAL] Re: [blink-dev] Intent to Ship: CSS Name-only Container Queries
Sounds close to a bugix to me, LGTM1 On Mon, Mar 30, 2026 at 2:15 PM Rune Lillesveen <[email protected]<mailto:[email protected]>> wrote: Contact emails [email protected]<mailto:[email protected]> Specification https://drafts.csswg.org/css-conditional-5/#container-rule Summary A CSS query container can be queried based on its container-name only, and the container does not need any container-type set: <style> #container { container-name: --foo; } @container --foo { input { background-color: green; } } <style> <div id="container"> <div><input></div> </div> Previously, @container required some query in addition to the name. Blink component Blink>CSS<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECSS%22> Web Feature ID container-queries<https://webstatus.dev/features/container-queries> Motivation Catch up with spec and other implementations which are about to ship support for name-only queries. Initial public proposal No information provided TAG review No information provided TAG review status Not applicable Goals for experimentation None Risks Interoperability and Compatibility Since both WebKit and Gecko are about to ship, not shipping would be an interop risk. There is a potential for contents of existing @container blocks to start applying, where they would currently be skipped, but as they would be of no use today the risk should be low. Gecko: Shipped/Shipping (https://bugzilla.mozilla.org/show_bug.cgi?id=2016474) Passes tests In Firefox nightly 151.0a1 WebKit: Shipped/Shipping (https://bugs.webkit.org/show_bug.cgi?id=302433) Passses tests in Safari TP 239 Web developers: No signals Other signals: WebView application risks Does this intent deprecate or change behavior of existing APIs, such that it has potentially high risk for Android WebView-based applications? No information provided Debuggability No information provided Will this feature be supported on all six Blink platforms (Windows, Mac, Linux, ChromeOS, Android, and Android WebView)? Yes Is this feature fully tested by web-platform-tests<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>? Yes https://wpt.fyi/results/css/css-conditional/container-queries/query-container-name.html?label=experimental&label=master&aligned https://wpt.fyi/results/css/css-conditional/container-queries/query-container-name-dynamic.html?label=experimental&label=master&aligned Flag name on about://flags enable-experimental-web-platform-features Finch feature name ContainerNameOnly Rollout plan Will ship enabled for all users Requires code in //chrome? False Tracking bug https://crbug.com/40287550 Estimated milestones Shipping on desktop 148 DevTrial on desktop 145 Shipping on Android 148 DevTrial on Android 145 Shipping on WebView 148 Anticipated spec changes Open questions about a feature may be a source of future web compat or interop issues. Please list open issues (e.g. links to known github issues in the project for the feature specification) whose resolution may introduce web compat/interop risk (e.g., changing to naming or structure of the API in a non-backward-compatible way). No information provided Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5184267522015232?gate=4703221115387904 This intent message was generated by Chrome Platform Status<https://chromestatus.com/>. -- Rune Lillesveen -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CACuPfeQn0ADOYv0EyWACyh317ZwgeMwGdPSFg%3DTdHcu5ANkymg%40mail.gmail.com<https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CACuPfeQn0ADOYv0EyWACyh317ZwgeMwGdPSFg%3DTdHcu5ANkymg%40mail.gmail.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]<mailto:[email protected]>. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY-KRAo0O54hjCK0e5gvLyMcJnh3vdajdNv919BVnma8-A%40mail.gmail.com<https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAFUtAY-KRAo0O54hjCK0e5gvLyMcJnh3vdajdNv919BVnma8-A%40mail.gmail.com?utm_medium=email&utm_source=footer>. -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/DS0PR00MB2527CC9C35389972F2BC353EC552A%40DS0PR00MB2527.namprd00.prod.outlook.com.
