Anchor positioning
Anchor positioning places an element based on the position of another element. For example, you can place a tooltip next to the content it references.
Status
Limited availability
MDN documentation
Specifications
Browser support (view on caniuse.com)
- Chrome 125 Released on 2024-05-14
- Chrome Android 125 Released on 2024-05-14
- Edge 125 Released on 2024-05-17
- Firefox ❌ See bugzil.la/1838746 Vendor position : positive
- Firefox for Android ❌ See bugzil.la/1838746 Vendor position : positive
- Safari 26 Released on 2025-09-15
- Safari on iOS 26 Released on 2025-09-15
Baseline availability blocked since September 2025 by Firefox (0 months)
Developer signals
- State of HTML 2024: usage/html_interoperability_features question
- State of HTML 2023: usage/html_interoperability_features question
- State of CSS 2025: usage/favorite_new_features question
- State of CSS 2025: usage/css_missing_features question
- State of CSS 2025: usage/css_interoperability_features question
- State of CSS 2025: reading_list/reading_list question
- State of CSS 2025: layout/layout_pain_points question
- State of CSS 2025: features/all_features question
- State of CSS 2024: usage/favorite_new_features question
- State of CSS 2024: usage/css_missing_features question
- State of CSS 2024: usage/css_interoperability_features question
- State of CSS 2024: reading_list/reading_list question
- State of CSS 2024: features/all_features question
Usage (according to Chrome Platform Status)
~0.238% of page loads. More data at chromestatus.
Interop
- Included in Interop 2025
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