Thank you. This helps. I also found that I was not saving after changes in NVU and think this was affecting my progress. Appreciate your help.
I'm not sure what else would be changing it. I didn't alter anything about the fonts in the page itself.
I'm editing in the css editor and will get the changes done that I want. Then I will go in to do something else and the earlier font size reverts...
Separate names with a comma.