Increase Title and body font size

Hi, I’m about to give up on life trying to find where I can increase the font size for posting title and body paragraph. The person want to increase the body size by default and not have to highlight and select a bigger font. Where can I find the code to change this? Thanks in advance!

• This topic was modified 5 years, 5 months ago by iluvwordpress77.

The page I need help with: [log in to see the link]