Web platform features explorer - abs() and sign()

Web platform features explorer

The abs() and sign() CSS functions compute the absolute value or the sign of the input.

Status

Baseline Newly Available (since 2025-06-26)

This feature is expected to reach Baseline Widely Available status on: 2027-12-26

MDN documentation

abs()
sign()

Specifications

CSS Values and Units Module Level 4 (#sign-funcs), from Cascading Style Sheets (CSS) Working Group (W3C).

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 118 Released on 2023-09-26
Firefox for Android 118 Released on 2023-09-26
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: features/all_features question

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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