CSS font change won't save

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 back. What am I doing wrong?
Thanks

 

Is there anything else that changes the font size for the text you are displaying?

Coding in the page itself and in the CSS file at the same time?

 

I'm not sure what else would be changing it. I didn't alter anything about the fonts in the page itself.

 

Is this font being used for the entire site? or just a particular area you have in mind?

If it's used for the entire site, edit it in the body portion of the CSS coding... unless you want it for a particular area, then you need to edit it in that id or class area of the CSS coding.

Can you perhaps give us a link to the website and a small snippet of the CSS coding where you want the font changed and tell us what's being changed on the site itself.

 

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.