Cascade layers
Widely available since 2024-09-14
The @layer
CSS at-rule avoids specificity conflicts by providing priority levels for different groups of CSS rules, such as low-priority styles like resets, and high-priority styles like UI components.
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Specifications
Browser support (view on caniuse.com)
- Chrome 99 Released on 2022-03-01
- Chrome Android 99 Released on 2022-03-01
- Edge 99 Released on 2022-03-03
- Firefox 97 Released on 2022-02-08
- Firefox for Android 97 Released on 2022-02-08
- Safari 15.4 Released on 2022-03-14
- Safari on iOS 15.4 Released on 2022-03-14
Developer signals
- State of CSS 2025: features/all_features question
- State of CSS 2024: usage/favorite_new_features question
- State of CSS 2024: usage/css_interoperability_features question
- State of CSS 2024: features/all_features question
Usage (according to Chrome Platform Status)
~1.666% of page loads. More data at chromestatus.
Interop
- Included in Interop 2022
Web Platform Tests (WPT)
View the latest WPT test results for this featureView as JSON | Edit this feature | Report an issue | Web-features entry: source, dist