Is there a way that I can change the font size (smaller) in the Profile page? I am guessing I could put a style in the Google Analytics area. But am not sure how to have it only affect the Profile page. Thank you.

Sometimes the 'class' style is specific to only that page. Examine what you want to change. Many times you can make the change in Preferences and it works fine. I've done that for some stuff in Profiles, like the photo sizes and positions.

For some others, I use a script that checks to see if there is a specific element I want to change and then inject a new style for just that element. Also in preferences.