_s/sass/mixins/_mixins-master.scss

@mixin font-1($weight) {
	// see functions.php->google_fonts()
	// and functions.php->_s_scripts()
	font-family:
		Montserrat,
		-apple-system,
		BlinkMacSystemFont,
		"Segoe UI",
		Roboto,
		Oxygen-Sans,
		Ubuntu,
		Cantarell,
		"Helvetica Neue",
		sans-serif;

	@if $weight == regular {
		font-weight: 400;
	} @else if $weight == bold {
		font-weight: 600;
	} @else if $weight == extra-bold {
		font-weight: 700;
	} @else {

		@error "font-weight #{$weight} not in valid font-weights for font-1: 'Montserrat'.";
	}
}

@mixin font-body($weight: regular) {

	@include font-1($weight);
}

@mixin font-title($weight: regular) {

	@include font-1($weight);
}

@mixin font-link($weight: regular) {

	@include font-1($weight);
}

@mixin font-code($weight: regular) {
	font-family: $font__code;
	font-weight: $weight;
}

@mixin font-pre($weight: regular) {
	font-family: $font__pre;
	font-weight: $weight;
}

// Center block
@mixin center-block {
	display: block;
	margin-left: auto;
	margin-right: auto;
}

// Column width with margin
@mixin column-width($numberColumns: 3) {
	width:
		map-get($columns, $numberColumns) -
		(($columns__margin * ($numberColumns - 1)) / $numberColumns);
}