inherits CSS at-rule descriptor

Baseline 2024
Newly available

Since July 2024, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

The inherits CSS descriptor of the @property at-rule controls whether or not the registered CSS custom property inherits by default. It is a required descriptor; if missing or invalid, the entire @property rule is invalid and ignored.

Syntax

css
/* Custom property does not inherit values */
inherits: false;

/* Custom property inherits values */
inherits: true;

Values

true

The property inherits by default.

false

The property does not inherit by default.

Formal definition

Related at-rule@property
Initial valueauto
Computed valueas specified

Formal syntax

inherits = 
true |
false

Examples

Setting inheritance behavior of a custom property

This example shows how to define a custom property --my-color that does not inherit its value from its parent elements:

css
@property --my-color {
  syntax: "<color>";
  inherits: false;
  initial-value: #c0ffee;
}

Using JavaScript CSS.registerProperty():

js
window.CSS.registerProperty({
  name: "--my-color",
  syntax: "<color>",
  inherits: false,
  initialValue: "#c0ffee",
});

Specifications

Specification
CSS Properties and Values API Level 1
# inherits-descriptor

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
inherits descriptor
Chrome – Full support
Chrome 85 (Release date: 2020-08-25)
footnote Full support
Edge – Full support
Edge 85 (Release date: 2020-08-27)
footnote Full support
Firefox – Full support
Firefox 128 (Release date: 2024-07-09)
footnote Full support
Opera – Full support
Opera 71 (Release date: 2020-09-15)
footnote Full support
Safari – Full support
Safari 16.4 (Release date: 2023-03-27)
footnote Full support
Chrome Android – Full support
Chrome Android 85 (Release date: 2020-08-25)
footnote Full support
Firefox for Android – Full support
Firefox for Android 128 (Release date: 2024-07-09)
footnote Full support
Opera Android – Full support
Opera Android 60 (Release date: 2020-09-23)
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 14 (Release date: 2021-04-17)
footnote Full support
WebView Android – Full support
WebView Android 85 (Release date: 2020-08-25)
footnote Full support
WebView on iOS – Full support
WebView on iOS 16.4 (Release date: 2023-03-27)
footnote Full support

Legend

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

Full support
Full support

See also