CSSCounterStyleRule.additiveSymbols

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

Syntax

let additiveSymbols = CSSCounterStyleRule.additiveSymbols;
CSSCounterStyleRule.additiveSymbols = a;

Value

A CSSOMString.

Examples

The following example shows a @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

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
additiveSymbols
91
91
33
No
77
No
91
91
33
64
No
No

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https://developer.mozilla.org/en-US/docs/Web/API/CSSCounterStyleRule/additiveSymbols