Is possible create map html area in percentage?

Question

I need to create something like this:

http://www.mrporter.com/journal/journal_issue71/2#2

where every product in my big image is associated with a tooltip wh

Answer 1

Percentages in image maps are not an option. You might want to get some scripting involved (JS) that recalculates the exact position on images resize. Of course, in that script you can work with percentages if you want.