| Counter | 
 The Counter interface is used to represent any counter or
 counters function value. 
 | 
| CSSPrimitiveValue | 
 The CSSPrimitiveValue interface represents a single CSS value
 . 
 | 
| CSSRule | 
 The CSSRule interface is the abstract base interface for any
 type of CSS statement. 
 | 
| CSSRuleList | 
 The CSSRuleList interface provides the abstraction of an
 ordered collection of CSS rules. 
 | 
| CSSStyleDeclaration | 
 The CSSStyleDeclaration interface represents a single CSS
 declaration block. 
 | 
| CSSStyleSheet | 
 The CSSStyleSheet interface is a concrete interface used to
 represent a CSS style sheet i.e., a style sheet whose content type is
 "text/css". 
 | 
| CSSValue | 
 The CSSValue interface represents a simple or a complex
 value. 
 | 
| Rect | 
 The Rect interface is used to represent any rect value. 
 | 
| RGBColor | 
 The RGBColor interface is used to represent any RGB color
 value. 
 |