Link in part of image and change the contour os the state in that map

Hey guys. I need to do something similar to the link below where I move the mouse over a state on the map of Brazil and it outlines the image and a box appears with information about covid in that state. Can anyone help me how to do this? Thanks

When I hover over one of the states on this map a window opens and changes the outline of the state on the map.

Here is my public share link: LINK
(how to access public share link)