themes-wordpress/elegant-business/sass/variables-site/_fonts.scss

/*
 * Source Serif Pro. (Google font)
 */
// @import url('https://fonts.googleapis.com/css?family=Source+Serif+Pro:400,700');
// See: elegant_business_fonts_url() in `functions.php`

// Font and typographic variables

$font__body: "Source Serif Pro", "Baskerville Old Face", Garamond, "Times New Roman", serif;
$font__heading: $font__body;
$font__ui: -apple-system, BlinkMacSystemFont, "Segoe UI", "Roboto", "Oxygen", "Ubuntu", "Cantarell", "Fira Sans", "Droid Sans", "Helvetica Neue", sans-serif;
$font__code: Menlo, monaco, Consolas, Lucida Console, monospace;
$font__pre: "Courier 10 Pitch", Courier, monospace;

$font__size_base: 22px;
$font__size-ratio: 1.125;

$font__size-xxs:   1em / (1.5 * $font__size-ratio);
$font__size-xs:    1em / (1.25 * $font__size-ratio);
$font__size-sm:    1em / (1 * $font__size-ratio);
$font__size-md:    1em * (1 * $font__size-ratio);
$font__size-lg:    1em * (1.5 * $font__size-ratio);
$font__size-xl:    1em * (2 * $font__size-ratio);
$font__size-xxl:   1em * (2.5 * $font__size-ratio);
$font__size-xxxl:  1em * (3 * $font__size-ratio);

$font__line-height-body: 1.8;
$font__line-height-pre: 1.6;
$font__line-height-heading: 1.2;
$font__line-height-double:  2 * $font__line-height-heading;