I'm aware of HiperDom, but I'm wondering if anyone has a good suggestion for how to structure docs so that docs can be written using abstract tags whose definition is separate. What I've done is a simple variable substitution. My doc uses constructs like <dtml-var MyH2Start> ... content ... <dtml-var MyH2End> and the definitions of MyH2Start and MyH2End are simple properties, whose values are usually something like: MyH2Start = "<td class=MyTdClass><P class=MyTagP>" MyH2End = "</P> </td>" This is the first part of the problem. Additionally, I would like the definitions of my tags (MyH2Start and MyH2End) to be dependent on the context in which the content appears. (If it shows up in a sidebar, an H2 looks one way, rather than in a main page where is looks another way.) (These were issues that CSS were to address, but most implementations are incompatible.) I'm not looking for a product as much as a suggestion for a methodology. Any help appreciated. T 7om