From a lot of searching, learing how to do CSS, I haven't seen anything that will change the width of the bars and several places that say it can't be done. If you want to change it for specific alignment reasons, I can tell you that I think the bars are exactly 16 pixels wide

By the way, I think I should point out that scrollbar attributes in style codes are part of the CSS2 standard, meaning that ONLY IE6 and Netscape 6 have the ability to display it. It will look normal on previous versions. For an example of one I did, check out www.sinfonicron.org (I think I used colors for the bars on that page...I can't check because I don't have IE6). And my own site, www.dignan17.com has them I think.