>My objection is more about making a button looking like a link, as in the linked StackOverflow answer. Oh, I agree on that point -- if it is legitimately a bu

>My objection is more about making a button looking like a link, as in the linked StackOverflow answer. Oh, I agree on that point -- if it is legitimately a button, you should not make it look like a link. That's like you're trying to them into thinking the click will take them to a different page. (Among other problems.) It's just that the issue of handling the [-] collapse icon caused me to realize there could be a use under those constraints. >And for the [-], couchand just suggested <details> and this is the correct answer for me now. Ah, wasn't aware of that. That seems like a better approach.