With the increasing availability of Web-enabled mobile devices, we are facing the problem to effectively adapt Web content for those devices. For adaptation, Web page structures require rearrangement, i.e., transcoding, to better fit on small displays when layout-specific HTML structures like tables and frames are used. In this article, we present a Fuzzy rule-based language, i.e., Fuzzy-RDL/TT. FuzzyRDL/TT (Fuzzy Rule Description Language for Tree Transformation) specifies sets of transcoding functions and defines their selection with respect to user and hardware profiles. The definition of profile selection is defined by the means of fuzzy rule descriptions where transcoding functions are specified by a Java-oriented language which operate on the DOM (Document Object Model) tree representation of an XML-based document.