Book Interchange Tag Suite (BITS) Version 1.0 Tag Library
Version 1.0
Digital Archive of Journal Articles
National Center for Biotechnology Information (NCBI)
National Library of Medicine (NLM)
%subsup.class;
Up/Down Rendition Class Elements
Small element class that contains just the superscript and subscript elements, to allow them to be used almost anywhere, even where other emphasis-style markup is not allowed