I just returned from speaking at the Alabama Code Camp 5.0 in Birmingham. One of my presentations was Deep Dive CSS for the ASP.NET Developer and I had hoped to spend some time on the tools in Orcas for working with Cascading Style Sheets. Unfortunately, I did not get a chance to do that due to the time constraints, so I wanted to post some of my better links on that subject...
How to: Use the Apply Styles and Manage Styles Windows
http://msdn2.microsoft.com/en-us/library/bb398979(VS.90).aspx
How to: Use the CSS Properties Window
http://msdn2.microsoft.com/en-us/library/bb398902(VS.90).aspx
How to: Use the Direct Style Application Toolbar
http://msdn2.microsoft.com/en-us/library/bb398977(VS.90).aspx