CSSCounterStyleRule: additiveSymbols property

{{APIRef("CSSOM")}}

The additiveSymbols property of the {{domxref("CSSCounterStyleRule")}} interface gets and sets the value of the {{cssxref("@counter-style/additive-symbols","additive-symbols")}} 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 {{cssxref("@counter-style")}} rule. In JavaScript, myRules[0] is this @counter-style rule, returning additiveSymbols gives us the value " V 5, IV 4, I 1".

@counter-style additive-symbols-example {
  system: additive;
  additive-symbols:
    V 5,
    IV 4,
    I 1;
}

let myRules = document.styleSheets[0].cssRules;
console.log(myRules[0].additiveSymbols); // " V 5, IV 4, I 1"

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}