Change Font Size

We have your Education Theme -- we want to change the font size of our body copy but cannot find the option to do so.  When we go to Customize / Typography Options it says "Set Fonts and Size" at the top of the options, but the only dropdown options available are to change the Headings, Primary Navigation, and Main Font Families. Why are these settings hidden, or is this controlled in a different location?  (By the way, I see that there are no size options available in the screenshots on your website: https://www.webfulcreations.com/products/education-wordpress-theme-education-wp.) Please advise.

Below is general code which is working, you can change it and place this code with your changes, in wp-admin >> Appearance >> customize >> Additional CSS to apply your font sizes.

The below font sizes are in rem; 1  REM is equal to 16 pixles. So if you see 0.875rem just multiply that with 16 and you will get size in pixles. You can also give font size in px instead of rem; but REM is recommended so things can work nicely in small devices as well. 

body {
    line-height:25px;
    font-size:0.875rem;
}
h1, 
h1 a { 
    font-size:2rem;
}
h2, 
h2 a {
    font-size:1.75rem;
}
h3, 
h3 a { 
    font-size:1.50rem;
}
h4, 
h4 a { 
    font-size:1.25rem;
}
h5, 
h6, 
h5 a, 
h6 a {
    font-size:1rem; 
}
label, 
p, 
ul, 
ol, 
a, 
blockquote, 
input, 
textarea, 
select, 
[type=date], 
[type=text], 
[type=email], 
span { 
    font-size:0.875rem;
    line-height:25px;
    color:#5d5d5d;
}