Hello @kingiraq,

Please mention the section that you want to increase the font size of so that we can provide you precise fix.

Thank you.

Best Regards!!

Hello @kingiraq,

You can control the font size of your primary navigation menu in Education Hup Pro theme by adding the following custom CSS in your Admin Dashboard > Appearance > Customize > Additional CSS :

.main-navigation ul li a {
    font-size: 14px;
}

You can increase or decrease the font size value ( in px. ) as per your requirements.

Hope this Helps,

Best Regards !!