The CSSPropertyRule interface of the CSS_Properties_and_Values_API represents a single CSS @property rule.
CSSPropertyRule
Properties
Inherits properties from its ancestor CSSRule.
-
CSSPropertyRule.inheritsRead only -
Returns the inherit flag of the custom property.
-
CSSPropertyRule.initialvalueRead only -
Returns the initial value of the custom property.
-
CSSPropertyRule.nameRead only -
Returns the name of the custom property.
-
CSSPropertyRule.syntaxRead only -
Returns the literal syntax of the custom property.
Methods
No specific methods; inherits methods from its ancestor CSSRule.
Examples
This stylesheet contains a single @property rule. The first CSSRule returned will be a CSSPropertyRule with the properties and values as defined by the rule in CSS.
@property --property-name { syntax: '<color>'; inherits: false; initial-value: #c0ffee; }
let myRules = document.styleSheets[0].cssRules; console.log(myRules[0]); //a CSSPropertyRule
Specifications
Browser compatibility
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | WebView Android | Chrome Android | Firefox for Android | Opera Android | Safari on IOS | Samsung Internet | |
CSSPropertyRule |
85
|
85
|
No
|
No
|
71
|
No
|
85
|
85
|
No
|
60
|
No
|
14.0
|
inherits |
85
|
85
|
No
|
No
|
71
|
No
|
85
|
85
|
No
|
60
|
No
|
14.0
|
initialValue |
85
|
85
|
No
|
No
|
71
|
No
|
85
|
85
|
No
|
60
|
No
|
14.0
|
name |
85
|
85
|
No
|
No
|
71
|
No
|
85
|
85
|
No
|
60
|
No
|
14.0
|
syntax |
85
|
85
|
No
|
No
|
71
|
No
|
85
|
85
|
No
|
60
|
No
|
14.0
|
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Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/API/CSSPropertyRule
