The Fonts section of the Customizer offers complete font family and font size control.
Heading Font
The font used for all headings, from h1 to h6.
Heading Font Size (em)
The size of post, page and archive headings in ems.
Body Font
The font used for text across the theme.
Body Font Size (em)
The body font size in ems.
Post Meta Font Size
The post meta font size in ems. Post meta include the author, categories, tags and comment count that appear under post titles.
Content H1 Font Size (em)
The size of h1 tags placed in the body of a post or page, in ems.
Content H2 Font Size (em)
The size of h2 tags placed in the body of a post or page, in ems.
Content H3 Font Size (em)
The size of h3 tags placed in the body of a post or page, in ems.
Content H4 Font Size (em)
The size of h4 tags placed in the body of a post or page, in ems.
Content H5 Font Size (em)
The size of h5 tags placed in the body of a post or page, in ems.
Content H6 Font Size (em)
The size of h6 tags placed in the body of a post or page, in ems.