IE style sheets drastically clean up the main stylesheet. O'reilly's book on CSS recommends to code to the standards and hack to the fringe browsers, and with g

IE style sheets drastically clean up the main stylesheet. O'reilly's book on CSS recommends to code to the standards and hack to the fringe browsers, and with good reason. Browsers change all the time. But they will always gravitate towards the standards. If you have have non-standards CSS your site will break in the future.