How to implement the markup of areas in the picture on the site?

Question

css

How to implement so that when hovering over different areas of the drawing, it is highlighted and outlines the border of this area, I understand that you can manually absolute positioning, but I think there must be some kind of library that automates this process.
Just in case, the link https://www.granelle.ru/objects/tpark/#flats/10

Answer 1

This is SVG.
Video playlist
On this channel, a whole playlist is dedicated to this, I advise.
Cross-browser compatibility is generally cool in all this, in short, you need to delve into it.
Article.