Web platform features explorer - Numeric factory functions

The numeric factory functions, such as CSS.px() or CSS.kHz(), return a CSSUnitValue representing a CSS number value (as in 12px or 440kHz).

Status

Limited availability

MDN documentation

CSS numeric factory functions

Specifications

CSS Typed OM Level 1 (#numeric-factory), from Cascading Style Sheets (CSS) Working Group (W3C).

Browser support

Chrome 66 Released on 2018-04-17
Chrome Android 66 Released on 2018-04-17
Edge 79 Released on 2020-01-15
Firefox ❌ See bugzil.la/1278697
Firefox for Android ❌ See bugzil.la/1278697
Safari 16.4 Released on 2023-03-27
Safari on iOS 16.4 Released on 2023-03-27

Baseline availability blocked since March 2023 by Firefox (35 months)

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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