home-assistant.io/sass/base/_typography.scss

$blockquote: $type-border !default;
$sans: "PT Sans", "Helvetica Neue", Arial, sans-serif !default;
$serif: "PT Serif", Georgia, Times, "Times New Roman", serif !default;
$mono: Menlo, Monaco, "Andale Mono", "lucida console", "Courier New", monospace !default;
$heading-font-family: "PT Serif", "Georgia", "Helvetica Neue", Arial, sans-serif !default;
$header-title-font-family: $heading-font-family !default;
$header-subtitle-font-family: $heading-font-family !default;

// Fonts
.heading {
  font-family: $heading-font-family;
}
.sans {
  font-family: $sans;
}
.serif {
  font-family: $serif;
}
.mono {
  font-family: $mono;
}

body > header h1 {
  font-size: 2.2em;
  @extend .heading;
  font-family: $header-title-font-family;
  font-weight: normal;
  line-height: 1.2em;
  margin-bottom: 0.6667em;
}
body > header h2 {
  font-family: $header-subtitle-font-family;
}

body {
  line-height: 1.5em;
  color: $text-color;
  @extend .serif;
}
h1 {
  font-size: 2.2em;
  line-height: 1.2em;
}

@media only screen and (min-width: 992px) {
  body {
    font-size: 1.15em;
  }
  h1 {
    font-size: 2.6em;
    line-height: 1.2em;
  }
}

#{headings()} {
  @extend .heading;
  text-rendering: optimizelegibility;
  margin-bottom: 1em;
  font-weight: bold;
}
h2,
section h1 {
  font-size: 1.5em;
}
h3,
section h2,
section section h1 {
  font-size: 1.3em;
}
h4,
section h3,
section section h2,
section section section h1 {
  font-size: 1em;
}
h5,
section h4,
section section h3 {
  font-size: 0.9em;
}
h6,
section h5,
section section h4,
section section section h3 {
  font-size: 0.8em;
}

p,
article blockquote,
ul,
ol {
  margin-bottom: 1.5em;
}

ul {
  list-style-type: disc;
  ul {
    list-style-type: circle;
    margin-bottom: 0px;
    ul {
      list-style-type: square;
      margin-bottom: 0px;
    }
  }
}

ol {
  list-style-type: decimal;
  ol {
    list-style-type: lower-alpha;
    margin-bottom: 0px;
    ol {
      list-style-type: lower-roman;
      margin-bottom: 0px;
    }
  }
}

ul,
ol {
  &,
  ul,
  ol {
    margin-left: 1.3em;
  }
}
ul,
ol {
  ul,
  ol {
    margin-bottom: 0em;
  }
}

strong {
  font-weight: bold;
}

em {
  font-style: italic;
}

sup,
sub {
  font-size: 0.75em;
  position: relative;
  display: inline-block;
  padding: 0 0.2em;
  line-height: 0.8em;
}
sup {
  top: -0.5em;
}
sub {
  bottom: -0.5em;
}

a[rev="footnote"] {
  font-size: 0.75em;
  padding: 0 0.3em;
  line-height: 1;
}

q {
  font-style: italic;
  &:before {
    content: '"';
  }
  &:after {
    content: '"';
  }
}

em,
dfn {
  font-style: italic;
}

strong,
dfn {
  font-weight: bold;
}

del,
s {
  text-decoration: line-through;
}

abbr,
acronym {
  border-bottom: 1px dotted;
  cursor: help;
}

pre,
code,
tt {
  @extend .mono;
}

hr {
  margin-bottom: 0.2em;
}

small {
  font-size: 0.8em;
}

big {
  font-size: 1.2em;
}

article blockquote {
  $bq-margin: 1.2em;
  font-style: italic;
  position: relative;
  font-size: 1.2em;
  line-height: 1.5em;
  padding-left: 1em;
  border-left: 4px solid rgba($text-color-light, 0.5);
  cite {
    font-style: italic;
    a {
      color: $text-color-light !important;
      word-wrap: break-word;
    }
    &:before {
      content: "\2014";
      padding: {
        right: 0.3em;
        left: 0.3em;
      }
      color: $text-color-light;
    }
  }
  @media only screen and (min-width: 992px) {
    padding-left: 1.5em;
    border-left-width: 4px;
  }
}

.pullquote-right:before,
.pullquote-left:before {
  /* Reset metrics. */
  padding: 0;
  border: none;

  /* Content */
  content: attr(data-pullquote);

  /* Pull out to the right, modular scale based margins. */
  float: right;
  width: 45%;
  margin: 0.5em 0 1em 1.5em;

  /* Baseline correction */
  position: relative;
  top: 7px;
  font-size: 1.4em;
  line-height: 1.45em;
}

.pullquote-left:before {
  /* Make left pullquotes align properly. */
  float: left;
  margin: 0.5em 1.5em 1em 0;
}

/* @extend this to force long lines of continuous text to wrap */
.force-wrap {
  white-space: -moz-pre-wrap;
  white-space: -pre-wrap;
  white-space: -o-pre-wrap;
  white-space: pre-wrap;
  word-wrap: break-word;
}