twbs--bootstrap/scss/_type.scss

//
// Typography
// --------------------------------------------------


// Headings
// -------------------------

h1, h2, h3, h4, h5, h6,
.h1, .h2, .h3, .h4, .h5, .h6 {
  margin-top: 0;
  font-family: $headings-font-family;
  font-weight: $headings-font-weight;
  line-height: $headings-line-height;
  color: $headings-color;

  small,
  .small {
    font-weight: normal;
    line-height: 1;
    color: $headings-small-color;
  }
}

h1, .h1,
h2, .h2,
h3, .h3 {
  margin-bottom: ($spacer / 2);

  small,
  .small {
    font-size: 65%;
  }
}
h4, .h4,
h5, .h5,
h6, .h6 {
  margin-bottom: ($spacer / 2);

  small,
  .small {
    font-size: 75%;
  }
}

h1, .h1 { font-size: $font-size-h1; }
h2, .h2 { font-size: $font-size-h2; }
h3, .h3 { font-size: $font-size-h3; }
h4, .h4 { font-size: $font-size-h4; }
h5, .h5 { font-size: $font-size-h5; }
h6, .h6 { font-size: $font-size-h6; }


// Body text
// -------------------------

p {
  margin-top: 0;
  margin-bottom: 1rem;
}

.lead {
  font-size: 1.25rem;
  font-weight: 300;
}


// Emphasis & misc
// -------------------------

// Ex: (12px small font / 14px base font) * 100% = about 85%
small,
.small {
  font-size: floor((100% * $font-size-sm / $font-size-base));
}

mark,
.mark {
  padding: .2em;
  background-color: $state-warning-bg;
}


// Page header
// -------------------------

// .page-header {
//   padding-bottom: (($line-height-computed / 2) - 1);
//   margin: ($line-height-computed * 2) 0 @line-height-computed;
//   border-bottom: 1px solid @page-header-border-color;
// }


// Lists
// -------------------------

// Unordered and Ordered lists
ul,
ol {
  margin-top: 0;
  margin-bottom: ($line-height-computed / 2);
  
  ul,
  ol {
    margin-bottom: 0;
  }
}

// List options

// Unstyled keeps list items block level, just removes default browser padding and list-style
.list-unstyled {
  padding-left: 0;
  list-style: none;
}

// Inline turns list items into inline-block
.list-inline {
  @extend list-unstyled();
  margin-left: -5px;

  > li {
    display: inline-block;
    padding-right: 5px;
    padding-left: 5px;
  }
}

// Description Lists
dl {
  margin-top: 0; // Remove browser default
  margin-bottom: $line-height-computed;
}
dt,
dd {
  line-height: $line-height-base;
}
dt {
  font-weight: bold;
}
dd {
  margin-left: 0; // Undo browser default
}

// Horizontal description lists
//
// Defaults to being stacked without any of the below styles applied, until the
// grid breakpoint is reached (default of ~768px).

.dl-horizontal {
  dd {
    @include clearfix(); // Clear the floated `dt` if an empty `dd` is present
  }

  @media (min-width: $grid-float-breakpoint) {
    dt {
      float: left;
      width: ($dl-horizontal-offset - 20);
      clear: left;
      text-align: right;
      @include text-overflow();
    }
    dd {
      margin-left: $dl-horizontal-offset;
    }
  }
}


// Misc
// -------------------------

// Abbreviations and acronyms
abbr[title],
// Add data-* attribute to help out our tooltip plugin, per https://github.com/twbs/bootstrap/issues/5257
abbr[data-original-title] {
  cursor: help;
  border-bottom: 1px dotted $abbr-border-color;
}
.initialism {
  font-size: 90%;
  text-transform: uppercase;
}

// Blockquotes
blockquote {
  padding: ($spacer / 2) $spacer;
  margin: 0 0 $spacer;
  font-size: $blockquote-font-size;
  border-left: .25rem solid $blockquote-border-color;

  p,
  ul,
  ol {
    &:last-child {
      margin-bottom: 0;
    }
  }

  footer {
    display: block;
    font-size: 80%; // back to default font-size
    line-height: $line-height-base;
    color: $blockquote-small-color;

    &:before {
      content: "\2014 \00A0"; // em dash, nbsp
    }
  }
}

// Opposite alignment of blockquote
.blockquote-reverse {
  padding-right: $spacer;
  padding-left: 0;
  text-align: right;
  border-right: .25rem solid $blockquote-border-color;
  border-left: 0;

  // Account for citation
  footer {
    &:before { content: ""; }
    &:after {
      content: "\00A0 \2014"; // nbsp, em dash
    }
  }
}

// Addresses
address {
  margin-bottom: $line-height-computed;
  font-style: normal;
  line-height: $line-height-base;
}