System/Library/PrivateFrameworks/WebKitLegacy.framework

DOMCSSStyleRule.h

NSObject
>
WebScriptObject
>
DOMObject
>
DOMCSSRule

@class NSString, DOMCSSStyleDeclaration;

@interface DOMCSSStyleRule : DOMCSSRule

@property (copy) NSString *selectorText;
@property (readonly) DOMCSSStyleDeclaration *style;

@end