StyleSheet
  RuleSet
    Selector
      SimpleSelector
        IdentLiteral : p
    PropertyDeclaration
      Property : color
      Expr
        Term
          IdentLiteral : blue
    UserAgentHack : [IE6, IE7]
      PropertyDeclaration
        Property : color
        Expr
          Term
            IdentLiteral : red
    PropertyDeclaration
      Property : background-color
      Expr
        Term
          HashLiteral : #fff
