CSSPageRule: selectorText property

The selectorText property of the CSSPageRule interface gets and sets the selectors associated with the CSSPageRule.

Value

A string.

The stylesheet includes two @page rules. The selectorText property will return the literal selector text of :first as a string.

css

@page {
  margin: 1cm;
}

@page :first {
  margin: 2cm;
}

const myRules = document.styleSheets[0].cssRules; // Two myRules
console.log(myRules[1].selectorText); // ":first"

Specification
CSS Object Model (CSSOM) # dom-csspagerule-selectortext