12. The computer-implemented method of claim 1 , wherein: the document comprises a file separate from code defining one of the plurality of textual elements of the document in the second rendering; and the file specifies that a predefined criterion of the plurality of predefined criteria applies to the one of the plurality of textual elements of the document in the second rendering.
13. The computer-implemented method of claim 12 , wherein the location descriptor associates the predefined criterion of the plurality of predefined criteria with the one of the plurality of textual elements of the document in the second rendering.