metamask-extension/ui/css/design-system/typography.scss

$fa-font-path: '/fonts/fontawesome';

@import '../../../node_modules/@fortawesome/fontawesome-free/scss/fontawesome';
@import '../../../node_modules/@fortawesome/fontawesome-free/scss/brands';
@import '../../../node_modules/@fortawesome/fontawesome-free/scss/solid';
@import '../../../node_modules/@fortawesome/fontawesome-free/scss/regular';

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 100;
  src: local('Roboto Thin'), local('Roboto-Thin'), url('/fonts/Roboto/Roboto-Thin.ttf') format('truetype');
}

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 300;
  src: local('Roboto Light'), local('Roboto-Light'), url('/fonts/Roboto/Roboto-Light.ttf') format('truetype');
}

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 400;
  src: local('Roboto'), local('Roboto-Regular'), url('/fonts/Roboto/Roboto-Regular.ttf') format('truetype');
}

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 500;
  src: local('Roboto Medium'), local('Roboto-Medium'), url('/fonts/Roboto/Roboto-Medium.ttf') format('truetype');
}

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 700;
  src: local('Roboto Bold'), local('Roboto-Bold'), url('/fonts/Roboto/Roboto-Bold.ttf') format('truetype');
}

@font-face {
  font-family: 'Roboto';
  font-style: normal;
  font-weight: 900;
  src: local('Roboto Black'), local('Roboto-Black'), url('/fonts/Roboto/Roboto-Black.ttf') format('truetype');
}

@font-face {
  font-family: 'Euclid';
  font-style: normal;
  font-weight: 400;
  src: url('/fonts/Euclid/EuclidCircularB-Regular-WebXL.ttf') format('truetype');
}

@font-face {
  font-family: 'Euclid';
  font-style: italic;
  font-weight: 400;
  src: url('/fonts/Euclid/EuclidCircularB-RegularItalic-WebXL.ttf') format('truetype');
}

@font-face {
  font-family: 'Euclid';
  font-style: normal;
  font-weight: 700;
  src: url('/fonts/Euclid/EuclidCircularB-Bold-WebXL.ttf') format('truetype');
}

$font-family: Euclid, Roboto, Helvetica, Arial, sans-serif;

$typography-variants: (
  'h1': 2.5rem,
  'h2': 2rem,
  'h3': 1.5rem,
  'h4': 1.125rem,
  'h5': 1rem,
  'h6': 0.875rem,
  'paragraph': 1rem,
  'h7': 0.75rem,
  'h8': 0.625rem,
  'h9': 0.5rem,
);

$font-size-h1: map-get($typography-variants, 'h1');
$font-size-h2: map-get($typography-variants, 'h2');
$font-size-h3: map-get($typography-variants, 'h3');
$font-size-h4: map-get($typography-variants, 'h4');
$font-size-h5: map-get($typography-variants, 'h5');
$font-size-h6: map-get($typography-variants, 'h6');
$font-size-paragraph: map-get($typography-variants, 'paragraph');
$font-size-h7: map-get($typography-variants, 'h7');
$font-size-h8: map-get($typography-variants, 'h8');
$font-size-h9: map-get($typography-variants, 'h9');

@mixin typography($variant) {
  font-size: map-get($typography-variants, $variant);
  font-family: $font-family;
  line-height: 140%;
  font-style: normal;
  font-weight: normal;
}

// Typography
@mixin H1 {
  @include typography('h1');
}

@mixin H2 {
  @include typography('h2');
}

@mixin H3 {
  @include typography('h3');
}

@mixin H4 {
  @include typography('h4');
}

@mixin H5 {
  @include typography('h5');
}

@mixin H6 {
  @include typography('h6');
}

@mixin Paragraph {
  @include typography('paragraph');
}

@mixin H7 {
  @include typography('h7');
}

@mixin H8 {
  @include typography('h8');
}

@mixin H9 {
  @include typography('h9');
}