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CSSStyleRule - Web APIs | MDN
Inherits properties from its ancestors CSSGroupingRule
and CSSRule
.
CSSStyleRule.selectorText
Returns the textual representation of the selector for this rule, e.g., "h1, h2"
.
CSSStyleRule.style
Read only
Returns the CSSStyleDeclaration
object for the rule.
CSSStyleRule.styleMap
Read only
Returns a StylePropertyMap
object which provides access to the rule's property-value pairs.
Inherits methods from its ancestors CSSGroupingRule
and CSSRule
.
The CSS includes one style rule. This will be the first CSSRule
returned by document.styleSheets[0].cssRules
.
myRules[0]
therefore returns a CSSStyleRule
object representing the rule defined for h1
.
let myRules = document.styleSheets[0].cssRules;
console.log(myRules[0]); // a CSSStyleRule representing the h1.