It’s better than before and yes, it’s quite close to what I envisioned, although there is delay in showing and hiding that is not pleasant.
What I envisioned I think it’s not possible via CSS: my idea was that all the hashtags on a block (bulletpoint paragraph) would only show the hash symbol and, when that block is active, either via mouse hover or via navigating with the arrow keys through blocks, then, togehter with showing a different background color (to show that it is active), the hashtags would get visible all at once, so that the user can then click on them if he wants to. It’s more of an UX thing that most likely can be solved via .js but not .css alone.