I also use TWO Different Browsers when testing or configuring the .css files.....

BY THE WAY, if you don't already know FireFox has a great little FREE add-on called "FireBug".... which is perfect for altering .css files....

You select what you want to change and "FireBug" will tell you which .css file you will find it in and on which line number!

You can also make changes directly in the "FireBug" program and see the changes take place instantly "BEFORE" see more you actually change them in the .css file.

I hope this helps.

Blaine.