Another bonus is that your visitor's browser needs to load less data per page, helping you reduce your data transfer usage while serving the same information. That means you'll be able to accommodate more site visitors without having to spend more on data transfer. Your pages will also load faster.
To help you work with CSS, we've created a free tool called Simple CSS, which runs on Macs, Windows and Linux. Simple CSS allows you to easily create Cascading Style Sheets from scratch, and/or modify existing ones, using a familiar point-and-click interface.
With Simple CSS, you can manage multiple CSS projects and import your existing style sheets. Simple CSS supports CSS2.