switch/src/scss/base/_typography.scss

html {
	@include font-size(5, mobile, true, true);
	@if ( get-font-size(5, desktop) != get-font-size(5, mobile) ) {
		@include media( '>medium' ) {
			@include font-size(5, desktop, true, true, true);
		}
	}
}

body {
	color: color(typography, 2);
	font-size: 1rem;
}

body,
button,
input,
select,
textarea {
	@include font-family(base);
}

a {
	@include anchor-aspect(main);
}

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
	clear: both;
	color: color(typography, 1);
	@if ( get-font-family(heading) != get-font-family(base) ) {
		@include font-family(heading);
	}
	@include font-weight(semibold);
}

h1,
.h1 {
	@include font-size(1, mobile, true, true, true);
	@if ( get-font-size(1, desktop) != get-font-size(1, mobile) ) {
		@include media( '>medium' ) {
			@include font-size(1, desktop, true, true, true);
		}
	}
}

h2,
.h2 {
	@include font-size(2, mobile, true, true, true);
	@if ( get-font-size(2, desktop) != get-font-size(2, mobile) ) {
		@include media( '>medium' ) {
			@include font-size(2, desktop, true, true, true);
		}
	}
}

h3,
.h3,
blockquote {
	@include font-size(3, mobile, true, true, true);
	@if ( get-font-size(3, desktop) != get-font-size(3, mobile) ) {
		@include media( '>medium' ) {
			@include font-size(3, desktop, true, true, true);
		}
	}
}

h4,
h5,
h6,
.h4,
.h5,
.h6 {
	@include font-size(4, mobile, true, true, true);
	@if ( get-font-size(4, desktop) != get-font-size(4, mobile) ) {
		@include media( '>medium' ) {
			@include font-size(4, desktop, true, true, true);
		}
	}
}

@include media( '<=medium' ) {

	.h1-mobile {
		@include font-size(1, mobile, true, true, true);
	}

	.h2-mobile {
		@include font-size(2, mobile, true, true, true);
	}

	.h3-mobile {
		@include font-size(3, mobile, true, true, true);
	}

	.h4-mobile,
	.h5-mobile,
	.h6-mobile {
		@include font-size(4, mobile, true, true, true);
	}
}

.text-light {
	color: color(typography, 2i);

	a {
		color: color(typography, 2i);
	}
}

.text-light {

	h1, h2, h3, h4, h5, h6,
	.h1, .h2, .h3, .h4, .h5, .h6 {
		color: color(typography, 1i) !important;
	}
}

.text-sm {
	@include font-size(6, mobile, true, true, true);
	@if ( get-font-size(6, desktop) != get-font-size(6, mobile) ) {
		@include media( '>medium' ) {
			@include font-size(6, desktop, true, true, true);
		}
	}
}

.text-xs {
	@include font-size(7, mobile, true, true, true);
	@if ( get-font-size(7, desktop) != get-font-size(7, mobile) ) {
		@include media( '>medium' ) {
			@include font-size(7, desktop, true, true, true);
		}
	}
}

h1, h2,
.h1, .h2 {
	margin-top: 48px;
	margin-bottom: 16px;
}

h3,
.h3 {
	margin-top: 36px;
	margin-bottom: 12px;
}

h4, h5, h6,
.h4, .h5, .h6 {
	margin-top: 24px;
	margin-bottom: 4px;
}

p {
	margin-top: 0;
	margin-bottom: 24px;
}

dfn, cite, em, i {
	font-style: italic;
}

blockquote {
	color: color(typography, 2);
	font-style: italic;
	margin-top: 24px;
	margin-bottom: 24px;
	margin-left: 24px;

	&::before {
		content: "\201C";
	}

	&::after {
		content: "\201D";
	}

	p {
		display: inline;
	}
}

address {
	color: color(typography, 2);
	border-width: 1px 0;
	border-style: solid;
	border-color: color(bg, 3);
	padding: 24px 0;
	margin: 0 0 24px;
}

pre,
pre h1,
pre h2,
pre h3,
pre h4,
pre h5,
pre h6,
pre .h1,
pre .h2,
pre .h3,
pre .h4,
pre .h5,
pre .h6  {
	@include font-family(pre);
}

pre, code, kbd, tt, var {
	background: color(bg, 2);
}

pre {
	@include font-size(7, mobile, true, true);
	margin-bottom: 1.6em;
	max-width: 100%;
	overflow: auto;
	padding: 24px;
	margin-top: 24px;
	margin-bottom: 24px;
}

code, kbd, tt, var {
	@include font-family(code);
	@include font-size(7, mobile, true);
	padding: 2px 4px;
}

abbr, acronym {
	cursor: help;
}

mark, ins {
	text-decoration: none;
}

small {
	@include font-size(6, mobile, true, true, true);
}

b,
strong {
	@include font-weight(semibold);
}

button,
input,
select,
textarea,
label {
	@include font-size(5, mobile, true, true);
}