Sample code using MACssRenderer, MADivsRenderer or Magritte-ComponentDecoration?

Hi all.. I'm trying to wrap my brain around the above classes and what they offer over the default rendering that Magritte offers (MATableRenderer)... To that end, I've seen a few little snippets using a little of the above but still can't seem to figure out the typical usage scenario.. I've got existing css that I would like to use to dress up various pieces of one or more objects -- similar to what Keith has submitted in photo form here on this mailing list earlier this year (enclosing various fields in boxes,etc).. Anyway, if someone can post a little code that can do something akin to that, that would get me past my current hurdle.. MANY thanks in advance! -- Rick