We also know that many times our best CSS efforts fail in one browser or another. CSS doesn't kill websites.
Browsers kill websites.
Netscape Navigator 6, due around Christmas 2000, should also fully support CSS Level 1. CSS-1 and beyond. We have not run tests to verify Opera's claims, but the browser was designed by the father of CSS, and we have little reason to doubt that it gets even the most academic nuances correct. That's the good news. Internet Explorer 5 for Windows, used by the majority, comes close to perfection but misses the mark in a few critical areas, and may not completely support Style Sheets before the release of IE6.