progress()
The progress() CSS function returns a ratio for the relative position of one value between two other values, clamped between 0 and 1. You can use it to interpolate a value for other calculations.
Status
Limited availability
MDN documentation
Specifications
Browser support
- Chrome 138 Released on 2025-06-24
- Chrome Android 138 Released on 2025-06-24
- Edge 138 Released on 2025-06-26
- Firefox ❌ See bugzil.la/1975530
- Firefox for Android ❌ See bugzil.la/1975530
- Safari 26 Released on 2025-09-15
- Safari on iOS 26 Released on 2025-09-15
Baseline availability blocked since September 2025 by Firefox (7 months)
Web Platform Tests (WPT)
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