This Use of MS Proprietary CSS is Disturbing

Browsing the links to my follow Greymatter users, I can see it because I, like vast hoards of other unwashed users, have IE. I hate to break the news to you young, aspiring page designers but scrollbar-[something]: is not legit CSS. It’s Microsoft proprietary and can lead to much badness if abused. Maybe it might be incorporated into CSS3 but, it isn’t now. Almost certainly the W3C recommendation will not be the same as the Microsoft implementation so, watch out.