im mostly just looking for a tutorial or something on how to do this:

im looking forward to making a paradox grand srategy game simillar to Hearts of Iron IV. im planning to make the map with html and css.

the game itself will be done with node.js.

Concept.js, to give a bit more info about what i would like the map to be like:

console.log("Welcome to EC I.\n This is a work in progress.\nIdeas:\nA accurate world map with provinces. and capital cities/districts, as well as major cities. big provinces will have large cities in said province be their own province. or the said province will be split into north/south.")

also. i researched, but i did not find a tutorial for this.