why some websites looks bad in some browsers?

[roxer]

I found and have faced that if a website is looking better in internet explorer then it will not be good in firefox have any one face this problem?.

[Spiral]

That's because different browsers render CSS differently, and without a CSS reset, they have different default stylesheets behind them. (eg, IE pages normally starts 15pixels from top margin, if i rmb correctly, atleast for IE6)


But...most of the difference you'll find.. IE is usually the only browser that renders CSS the most differently from any other browsers you can find. (A website that's loaded on opera should look more or less similar to firefox, google chrome and safari, while maybe very very different from IE)