Weird problem with link

Check this website of mine.
http://www.epareiluevoluutio.com/

There´s this bright orange button that says "TILAA TÄSTÄ". It works ok with FF and IE, but with opera and chrome the link is waaaay ooof! You see i´ve used an image map(yes i know you should´nt use, but it´s easy, so i did).

So how come opera and chrome are acting like that. Any ideas how to fix it. Because i like to keep my sites working in major browsers.

Thanks in advance

 

Problem solved...thread can be closed..thank you