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 CSSCharsetRule Represents the CSS @charset rule.

 CSSDocumentRule Contains the rules specified by a @document { /* ... */ } rule.

 CSSFontFaceRule Represents the @font-face rule.

 CSSImportRule Represents a CSS import rule.

 CSSKeyframeRule Represents a CSS @keyframe rule.

 CSSKeyframesRule Represents an @keyframes rule.

 CSSMediaRule Represents a CSS @media rule.

 CSSNamespaceRule Represents an @namespace rule.

 CSSPageRule Represents the @page rule.

 CSSProperty Fore more information about CSS properties see http://www.w3.org/TR/CSS21/propidx.html.

 CSSRuleList Represents an array like structure containing CSS rules.

 CSSStyleRule Represents a CSS style rule.

 CSSStyleSheet Represents a CSS Stylesheet.

 CSSSupportsRule Represents an @supports rule.

 CSSValue Represents a CSS value.

 StyleSheet Represent a stylesheet object.

 CssRuleType The set of possible CSS rules.

 CssUnit An integer indicating which type of unit applies to the value.

 CssValueType This enumeration is indicating which type of unit applies to the value.

 CSSConditionRule Represents the abstract base class for CSS media and CSS supports rules.

 CSSGroupingRule Represents the CSSGroupingRule interface.

 CSSRule Represents a CSS rule.

 Selector Represents a CSS selector as specified in http://dev.w3.org/csswg/selectors4/