Thank you Mat! After reading some question-answer sites concernig details animation and playing with one of the examples, I decided to leave that option to the users and incorporated this sentence in my warning details:
”Other browsers [than Edge, whitch does not support details at all] might not support animation effects on opening or closing – at least not in early 2017.“ I will happily help with testing when you present a working solution ;–) -- 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 [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/38996446-1668-45fd-976e-a6875a603a2d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

