I suggest to use black text, custom zoom levels and other settings on default.
My target is to keep the original site and just get rid of the annoying things.

If there is some annoying text in the background, that's because i have adblock+, noscript and flashblock. I tested the style with scripts allowed, adblock off and flashblock deactivated and the ads were visible only in the background, so it should be alright. But, since this is my first experience with CSS, i can't assure anything. I'll be happy, if the style works at all.