Font Size on iPhone Screens

I have tried about every fix out there to make the font look larger on iPhones and I still get a tiny font that Google does not like. Is there any CSS that will fix this issue? I have google fonts plugin installed. My site is Looks great on tablets and desktop, but the tiny font on iPhones is killing me. Any help would be appreciated. Anyone who has worked this issue before please reply. Thanks in advance.

Note: I have some CSS with a font size of 18 in the homepage CSS section. I have removed it then I get small font everywhere desktop, tablet, and iPhones.

Hey there

Thank you for the question, can you please upload a screenshot? right now I can’t see any problem with the font, are we talking about the body font?