the class-o-matic

I have a query - that maybe one of you monsters can answer.

I've noticed that typesetting or type set in different browsers can appear differently in various browsers. In other words ( I hate doing that ) what appears to be well set, balanced, correctly leaded and kerned etc. in one browser, goes all screwy in an other.

The recent post regarding the football supporters graphic/map is a good example, in Safari it looks fine but in FireFox it looks as if typeset by a marmot. Any ideas ? Is there a universal typsetting method which is browser agnostic, and will work in all browsers, regardless of it's origin ? Or is that just ridiculous ? , an impossible thing to ask for - continuity .....