Hello,
Yes that should work. - First thing is to press refresh a couple of times, sometimes it takes time to take effect.
2) - Download the
FireFox web developers Toolbarthis is an essential tool that I use all the time for skin development. - Once you've installed it, open your skin in Firefox and select Information / Display ID & class details - You will then be able to view the class that is associated with the Login links.
From this you will be able to see if you have made a mistake somewhere for setting the class for the login links.
The other really useful tool in the toolbar is to go to CSS / Edit CSS - this allows you to test CSS settings live and doesn't change the original CSS file.
Hopefully this will help you troubleshoot your skin to see where the problems are occurring, thanks,