I already know you have to turn off Auto Font Size. And I know you have to use the "Set CSS Style" action. But when I add the action "Set CSS Style", what do I type into the top field and the bottom field to change the size of the text font? What are some other commands I could use as well? Any help would be greatly appreciated!
First, Check out this site: https://www.w3schools.com/css/default.asp this site has all you need in how to use CSS.
If you go down you will see some codes like so: