Widely Available
Counters
id: counter-set
counter-set
The
counter-set CSS property creates (and optionally sets a value for) a counter, the numbers for a series of headings or ordered list items.
Baseline Status:
Achieved Widely Available on Jun 11, 2026 (Cross-browser Newly Available since Dec 11, 2023).
Desktop Browser Engine Support
Google Chrome
85
Supported
Mozilla Firefox
68
Supported
Apple Safari
17.2
Supported
Microsoft Edge
85
Supported
Mobile Browser Engine Support
Chrome Android
85
Firefox Android
68
Safari iOS
17.2
Specifications and References
MDN Browser Compat Data Keys: