How to add custom floating widget or content per blog post ?


I intend to put a floating widget or content in my right side bar that follows as user scrolls up/down. This floating content block will serve as navigational table of contents. It must be unique per blog post. Either I add by HTML/CSS or by shortcodes. Highly appreciate your help or suggestions.


Hi, why you don’t add html code in your post at the end, and with css custom ro float on your post.
Or search html post, I know for css exists plugin and give you an option to have extra field for css custom in post, page.
Maybe is something like this, also for html.

Cheers and good luck.
Or try to hire someone to do this job.