| Counter | The Counterinterface is used to represent any counter or 
 counters function value. | 
| CSS2Properties | The CSS2Propertiesinterface represents a convenience 
 mechanism for retrieving and setting properties within aCSSStyleDeclaration. | 
| CSSCharsetRule | The CSSCharsetRuleinterface represents a @charset rule in a 
 CSS style sheet. | 
| CSSFontFaceRule | The CSSFontFaceRuleinterface represents a @font-face rule in 
 a CSS style sheet. | 
| CSSImportRule | The CSSImportRuleinterface represents a @import rule within 
 a CSS style sheet. | 
| CSSMediaRule | The CSSMediaRuleinterface represents a @media rule in a CSS 
 style sheet. | 
| CSSPageRule | The CSSPageRuleinterface represents a @page rule within a 
 CSS style sheet. | 
| CSSPrimitiveValue | The CSSPrimitiveValueinterface represents a single CSS value
 . | 
| CSSRule | The CSSRuleinterface is the abstract base interface for any 
 type of CSS statement. | 
| CSSRuleList | The CSSRuleListinterface provides the abstraction of an 
 ordered collection of CSS rules. | 
| CSSStyleDeclaration | The CSSStyleDeclarationinterface represents a single CSS 
 declaration block. | 
| CSSStyleRule | The CSSStyleRuleinterface represents a single rule set in a 
 CSS style sheet. | 
| CSSStyleSheet | The CSSStyleSheetinterface is a concrete interface used to 
 represent a CSS style sheet i.e., a style sheet whose content type is 
 "text/css". | 
| CSSUnknownRule | The CSSUnknownRuleinterface represents an at-rule not 
 supported by this user agent. | 
| CSSValue | The CSSValueinterface represents a simple or a complex 
 value. | 
| CSSValueList | The CSSValueListinterface provides the abstraction of an 
 ordered collection of CSS values. | 
| DocumentCSS | This interface represents a document with a CSS view. | 
| DOMImplementationCSS | This interface allows the DOM user to create a CSSStyleSheetoutside the context of a document. | 
| ElementCSSInlineStyle | Inline style information attached to elements is exposed through the styleattribute. | 
| Rect | The Rectinterface is used to represent any rect value. | 
| RGBColor | The RGBColorinterface is used to represent any RGB color 
 value. | 
| ViewCSS | This interface represents a CSS view. |