CSSCounterStyleRule: fallback property
Baseline
2023
Newly available
Since September 2023, this feature works across the latest devices and browser versions. This feature might not work in older devices or browsers.
The fallback property of the CSSCounterStyleRule interface gets and sets the value of the fallback 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 fallback gives us the value "disc".
css
@counter-style box-corner {
system: fixed;
symbols: ◰ ◳ ◲ ◱;
suffix: ": ";
fallback: disc;
}
js
let myRules = document.styleSheets[0].cssRules;
console.log(myRules[0].fallback); // "disc"
Specifications
| Specification |
|---|
| CSS Counter Styles Level 3 # dom-csscounterstylerule-fallback |
Browser compatibility
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