CSSCounterStyleRule: system property

Baseline 2023

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Since September 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.

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The system property of the CSSCounterStyleRule interface gets and sets the value of the system descriptor. If the descriptor does not have a value set, this attribute returns an empty string.

Value

A string

Examples

The following example shows a @counter-style rule. In JavaScript, myRules[0] is this @counter-style rule, returning system gives us the value "fixed".

css

@counter-style box-corner {
  system: fixed;
  symbols: ◰ ◳ ◲ ◱;
  suffix: ": ";
}

let myRules = document.styleSheets[0].cssRules;
console.log(myRules[0].system); // "fixed"

Specifications

Specification
CSS Counter Styles Level 3 # dom-csscounterstylerule-system

Browser compatibility

BCD tables only load in the browser