ah, mark has stumbled into what-if-you-can't-hide-css problem as it relates to safari. in a perfect world, all browsers (and other clients) would implement the css standard (and others) perfectly, and the same. in the real world, they all have little quirks. i consider it a pretty big flaw in css (and similar standards) that there's no sanctioned way to accomodate the real world. instead we have a grotty mess of bugs to exploit, javascript trickery, or server-side sniffing.

of course, then you go down the rabbit-hole of tricking out the user-agent to kind-of claim to be who you're not.

it's great that david hyatt, of the safari team, is addressing this stuff publically. it's too bad there's not just a real public face for the safari team like a shared weblog.