text: $title-color: $text-strong !default;
  $title-family: false !default;
  $title-size: $size-3 !default;
  $title-weight: $weight-semibold !default;
  $title-line-height: 1.125 !default;
  $title-strong-color: inherit !default;
  $title-strong-weight: inherit !default;
  $title-sub-size: 0.75em !default;
  $title-sup-size: 0.75em !default;
  
  $subtitle-color: $text !default;
  $subtitle-family: false !default;
  $subtitle-size: $size-5 !default;
  $subtitle-weight: $weight-normal !default;
  $subtitle-line-height: 1.25 !default;
  $subtitle-strong-color: $text-strong !default;
  $subtitle-strong-weight: $weight-semibold !default;
  $subtitle-negative-margin: -1.25rem !default;
  
  .title,
  .subtitle {
    @extend %block;
  
    word-break: break-word;
  
    em,
    span {
      font-weight: inherit;
    }
  
    sub {
      font-size: $title-sub-size;
    }
  
    sup {
      font-size: $title-sup-size;
    }
  
    .tag {
      vertical-align: middle;
    }
  }
  
  .title {
    color: $title-color;
  
    @if $title-family {
      font-family: $title-family;
    }
  
    font-size: $title-size;
    font-weight: $title-weight;
    line-height: $title-line-height;
  
    strong {
      color: $title-strong-color;
      font-weight: $title-strong-weight;
    }
  
    & + .highlight {
      margin-top: -0.75rem;
    }
  
    &:not(.is-spaced) + .subtitle {
      margin-top: $subtitle-negative-margin;
    }
  
    // Sizes
    @each $size in $sizes {
      $i: index($sizes, $size);
  
      &.is-#{$i} {
        font-size: $size;
      }
    }
  }
  
  .subtitle {
    color: $subtitle-color;
  
    @if $subtitle-family {
      font-family: $subtitle-family;
    }
  
    font-size: $subtitle-size;
    font-weight: $subtitle-weight;
    line-height: $subtitle-line-height;
  
    strong {
      color: $subtitle-strong-color;
      font-weight: $subtitle-strong-weight;
    }
  
    &:not(.is-spaced) + .title {
      margin-top: $subtitle-negative-margin;
    }
  
    // Sizes
    @each $size in $sizes {
      $i: index($sizes, $size);
  
      &.is-#{$i} {
        font-size: $size;
      }
    }
  }
  