Yes. But you need to change the view template(s). Either you create a view template which adds one or mor classes to some of the dom elements, or you create individual view templates for specifically tagged tiddlers.
For example: On http://tw5magick.tiddlyspot.com/ I created a viewtemplate "viewPerson" for the "Creating a simple Contacts DB" example which changes how a tiddler with tag "person" is displayed. -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. Visit this group at http://groups.google.com/group/tiddlywiki. For more options, visit https://groups.google.com/d/optout.