notes/_sass/support/_mixins.scss

// Font size

@mixin fs-1 {
  font-size: 10px !important;
}

@mixin fs-2 {
  font-size: 12px !important;
}

@mixin fs-3 {
  font-size: 14px !important;
}

@mixin fs-4 {
  font-size: 16px !important;
}

@mixin fs-5 {
  font-size: 18px !important;
}

@mixin fs-6 {
  font-size: 24px !important;
}

@mixin fs-7 {
  font-size: 32px !important;
}

@mixin fs-8 {
  font-size: 36px !important;
}

@mixin fs-9 {
  font-size: 42px !important;
}

@mixin fs-10 {
  font-size: 48px !important;
}

// Media query

// Media query mixin
// Usage:
// @include mq(md) {
//   ..medium and up styles
// }
@mixin mq($name) {
  // Retrieves the value from the key
  $value: map-get($media-queries, $name);

  // If the key exists in the map
  @if $value != null {
    // Prints a media query based on the value
    @media (min-width: rem($value)) {
      @content;
    }
  } @else {
    @warn "No value could be retrieved from `#{$media-query}`. "
        + "Please make sure it is defined in `$media-queries` map.";
  }
}