CSSCounterStyleRule.fallback

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.

Syntax

let fallback = CSSCounterStyleRule.fallback;
CSSCounterStyleRule.fallback = a;

Value

A CSSOMString.

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".

@counter-style box-corner {
  system: fixed;
  symbols: ◰ ◳ ◲ ◱;
  suffix: ': ';
  fallback: disc;
}
let myRules = document.styleSheets[0].cssRules;
console.log(myRules[0].fallback); // "disc"

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
fallback
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/fallback