SupportFirefox, Internet Explorer 6, Netscape Navigator 7, Mozilla, Opera, and Safari fully support CCS*
Flexibility:One change to a CSS file can change entire website.
Rendering:Pages display faster because CSS is cached and the majority a site’s HTML pages code are content not layout (no complex table).
Accessibility:Screen readers will see you HTML without the layout leaving the result "text only".
* with quirks (especially IE)