jonathancross
commented
6 years ago @dmitry-pavlov Clicked items don't "disappear" from what I can see -- it is still there on the left side after the new page loads. The current page is not highlighted (and is still linked) making it difficult for users to locate themselves, however this is a different issue.
Is it possible your issue has been fixed?
If you click on any link in the left navigation menu for "Cardano overview" section here https://cardanodocs.com/technical/cli-options/ - the page opens but left navigation disappears. For instance: https://cardanodocs.com/cardano/addresses/ (Cardano overview -> Addresses)