CSSVariableReferenceValue

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

See full compatibility

The CSSVariableReferenceValue interface of the CSS Typed Object Model API allows you to create a custom name for a built-in CSS value. This object functionality is sometimes called a "CSS variable" and serves the same purpose as the var() function. The custom name must begin with two dashes.

Constructor

CSSVariableReferenceValue(): Creates a new CSSVariableReferenceValue object.

Instance properties

CSSVariableReferenceValue.variable: Returns the custom name passed to the constructor.
CSSVariableReferenceValue.fallback Read only: Returns the built-in CSS value for the custom name.

Instance methods

None.

Specifications

Specification
CSS Typed OM Level 1 # cssvariablereferencevalue

Browser compatibility

	desktop					mobile
	Chrome	Edge	Firefox	Opera	Safari	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	WebView Android	WebView on iOS
`CSSVariableReferenceValue`	Chrome – Full support Chrome 66 (Release date: 2018-04-17) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote footnote See bug 1278697	Opera – Full support Opera 53 (Release date: 2018-05-10) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 66 (Release date: 2018-04-17) footnote Full support	Firefox for Android – No support Firefox for Android footnote footnote See bug 1278697	Opera Android – Full support Opera Android 47 (Release date: 2018-07-23) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 9 (Release date: 2018-09-15) footnote Full support	WebView Android – Full support WebView Android 66 (Release date: 2018-04-17) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`CSSVariableReferenceValue()` constructor	Chrome – Full support Chrome 66 (Release date: 2018-04-17) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote footnote See bug 1278697	Opera – Full support Opera 53 (Release date: 2018-05-10) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 66 (Release date: 2018-04-17) footnote Full support	Firefox for Android – No support Firefox for Android footnote footnote See bug 1278697	Opera Android – Full support Opera Android 47 (Release date: 2018-07-23) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 9 (Release date: 2018-09-15) footnote Full support	WebView Android – Full support WebView Android 66 (Release date: 2018-04-17) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`fallback`	Chrome – Full support Chrome 66 (Release date: 2018-04-17) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote footnote See bug 1278697	Opera – Full support Opera 53 (Release date: 2018-05-10) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 66 (Release date: 2018-04-17) footnote Full support	Firefox for Android – No support Firefox for Android footnote footnote See bug 1278697	Opera Android – Full support Opera Android 47 (Release date: 2018-07-23) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 9 (Release date: 2018-09-15) footnote Full support	WebView Android – Full support WebView Android 66 (Release date: 2018-04-17) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support
`variable`	Chrome – Full support Chrome 66 (Release date: 2018-04-17) footnote Full support	Edge – Full support Edge 79 (Release date: 2020-01-15) footnote Full support	Firefox – No support Firefox footnote footnote See bug 1278697	Opera – Full support Opera 53 (Release date: 2018-05-10) footnote Full support	Safari – Full support Safari 16.4 (Release date: 2023-03-27) footnote Full support	Chrome Android – Full support Chrome Android 66 (Release date: 2018-04-17) footnote Full support	Firefox for Android – No support Firefox for Android footnote footnote See bug 1278697	Opera Android – Full support Opera Android 47 (Release date: 2018-07-23) footnote Full support	Safari on iOS – Full support Safari on iOS 16.4 (Release date: 2023-03-27) footnote Full support	Samsung Internet – Full support Samsung Internet 9 (Release date: 2018-09-15) footnote Full support	WebView Android – Full support WebView Android 66 (Release date: 2018-04-17) footnote Full support	WebView on iOS – Full support WebView on iOS 16.4 (Release date: 2023-03-27) footnote Full support

Tip: you can click/tap on a cell for more information.

Full support: Full support
No support: No support
: See implementation notes.

This page was last modified on May 14, 2024 by MDN contributors.

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