Web platform features explorer

The if() CSS function is an inline conditional value that returns a value based on a set of conditions.

Status

Limited availability

MDN documentation

if()

Specifications

CSS Values and Units Module Level 5 (#if-notation), from Cascading Style Sheets (CSS) Working Group (W3C).

Browser support

Chrome 137 Released on 2025-05-27
Chrome Android 137 Released on 2025-05-27
Edge 137 Released on 2025-05-29
Firefox ❌ Vendor position : unknown
Firefox for Android ❌ Vendor position : unknown
Safari ❌ Vendor position : unknown
Safari on iOS ❌ Vendor position : unknown

Developer signals

State of CSS 2025: reading_list/reading_list question
State of CSS 2025: math_features/math_features_pain_points question
State of CSS 2025: features/all_features question

Usage (according to Chrome Platform Status)

~0.120% of page loads. More data at chromestatus.com.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

Developer signals

Votes: 3

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