Hi. That is exactly what we are using and exactly what I did. No difference in the font-size. I know how to write CSS. I am not as familiar with wordpress. This is why this has been driving me batty. I first tried to write my own. I looked for the classes. no change. I then started researching this and seeing what other people have done. No change.
I have also already tried the !important as well to no avail.