Right, the css needs a specification in order to "know" what to target its styles on. But the specification when you use "data-tags" is the tiddler with a certain tag... which is what you removed the text from, so you lost the specification which was pointing and saying "color this text blue".
Maybe you can use Transclusion with Templates <https://tiddlywiki.com/prerelease/#Transclusion%20with%20Templates> ? <:-) -- 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 view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/9d9f053a-4673-4d62-8980-f5b0764084ffo%40googlegroups.com.