CSSCounterStyleRule: additiveSymbols property
Baseline
Widely available
This feature is well established and works across many devices and browser versions. It’s been available across browsers since September 2023.
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.
Value
A string.
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".
css
@counter-style additive-symbols-example {
system: additive;
additive-symbols:
V 5,
IV 4,
I 1;
}
js
let myRules = document.styleSheets[0].cssRules;
console.log(myRules[0].additiveSymbols); // " V 5, IV 4, I 1"
Specifications
| Specification |
|---|
| CSS Counter Styles Level 3 # dom-csscounterstylerule-additivesymbols |