Use of cascading style sheets helps to ensure a consistent look and feel throughout a site or subsite.Changes to style, fonts, sizes, etc. can be made in one place and incorporated automatically throughout all pages that utilize the style sheet.

You may wish to display an entirely different set of colors and fonts to your customers than what anonymous visitors see, or have a different look and feel for the product section of your site than what is used in the company section. Cascading Style Sheets can be scheduled to achieve this flexibility.