Anchor position container queriesLimited availability
Anchor position container queries with the @container anchored(fallback: …) at-rule apply styles to an element based on the element's anchor position.
Not yet supported in all major browsers — check the table and provide a fallback.
Browser support
DesktopChrome
1–142Not supported
143+Supportedsince Dec 2, 2025
Current: 155Edge
12–142Not supported
143+Supportedsince Dec 5, 2025
Current: 154Firefox
✕Not supportedup to 157
Current: 157Safari
✕Not supportedup to 27
Current: 27MobileChrome Android
18–142Not supported
143+Supportedsince Dec 2, 2025
Current: 155Firefox Android
✕Not supportedup to 157
Current: 157Safari iOS
✕Not supportedup to 27
Current: 27How to use
Not supported in Firefox, Safari, Firefox Android, Safari iOS. Use feature detection below and provide a fallback (or a polyfill) for those browsers.
Example
Full syntax and examples are on MDN — see the links below.
Feature detection
CSS · check before using
@supports (container-type: anchored) {
/* styles that rely on container-type: anchored */
}
/* or in JavaScript */
if (CSS.supports("container-type", "anchored")) {
// use it
}Specification
Sub-features
Support for each part of the feature (4). The overall table above shows when the whole feature works.
| Sub-feature | Chrome | Edge | Firefox | Safari | Chrome Android | Firefox Android | Safari iOS |
|---|---|---|---|---|---|---|---|
| @container.anchor_position_queries | 143 | 143 | ✕ | ✕ | 143 | ✕ | ✕ |
| @container.anchor_position_queries.fallback | 143 | 143 | ✕ | ✕ | 143 | ✕ | ✕ |
| @container.anchor_position_queries.fallback.any_value | 143 | 143 | ✕ | ✕ | 143 | ✕ | ✕ |
| container-type.anchored | 143 | 143 | ✕ | ✕ | 143 | ✕ | ✕ |