CSSPropertyRule

The CSSPropertyRule interface of the CSS Properties and Values API represents a single CSS @property rule.

Instance properties

Inherits properties from its ancestor CSSRule.

CSSPropertyRule.inherits Read only

Returns the inherit flag of the custom property.

CSSPropertyRule.initialValue Read only

Returns the initial value of the custom property.

CSSPropertyRule.name Read only

Returns the name of the custom property.

CSSPropertyRule.syntax Read only

Returns the literal syntax of the custom property.

Instance 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;
}

const myRules = document.styleSheets[0].cssRules;
console.log(myRules[0]); // A CSSPropertyRule

Specifications

Browser compatibility