BookStack/resources/assets/sass/_text.scss

/*
* Header Styles
*/

h1 {
  font-size: 5.625em;
  line-height: 1.22222222em;
  margin-top: 0.48888889em;
  margin-bottom: 0.24444444em;
}
h2 {
  font-size: 3.1875em;
  line-height: 1.294117647em;
  margin-top: 0.8627451em;
  margin-bottom: 0.43137255em;
}
h3 {
  font-size: 1.75em;
  line-height: 1.571428572em;
  margin-top: 0.78571429em;
  margin-bottom: 0.43137255em;
}
h4 {
  font-size: 1em;
  line-height: 1.375em;
  margin-top: 1.375em;
  margin-bottom: 1.375em;
}

h1, h2, h3, h4 {
  .subheader {
    display: block;
    font-size: 0.5em;
    line-height: 1em;
    color: lighten($text-dark, 16%);
  }
}

/*
* Link styling
*/
a {
  color: $primary;
  cursor: pointer;
  text-decoration: none;
  transition: color ease-in-out 80ms;
  &:hover {
    text-decoration: underline;
    color: darken($primary, 20%);
  }
}

/*
* Other HTML Text Elements
*/
p, ul, ol, pre, table, blockquote {
  margin-top: 0.3em;
  margin-bottom: 1.375em;
}

hr {
  border: 0;
  height: 1px;
  border: 0;
  background: #e3e0e0;
  margin-bottom: $-l;
  &.faded {
    background-image: linear-gradient(to right, #FFF, #e3e0e0 20%, #e3e0e0 80%, #FFF);
  }
  &.margin-top {
    margin-top: $-l;
  }
}

strong, b, .bold, .strong {
  font-weight: bold;
  > strong, > b, > .bold, > .strong {
    font-weight: bolder;
  }
}

em, i, .italic {
  font-style: italic;
}

small, p.small, span.small, .text-small {
  font-size: 0.8em;
  color: lighten($text-dark, 20%);
}

sup, .superscript {
  vertical-align: super;
  font-size: 0.8em;
}

pre {
  font-family: monospace;
  white-space:pre;
}

blockquote {
  display: block;
  position: relative;
  border-left: 4px solid $primary;
  background-color: #F8F8F8;
  padding: $-s $-m $-s $-xl;
  &:before {
    content: "\201C";
    font-size: 2em;
    font-weight: bold;
    position: absolute;
    top: $-s;
    left: $-s;
    color: lighten($text-dark, 20%);
  }
}

.code-base {
    background-color: #F8F8F8;
    font-family: monospace;
    font-size: 0.88em;
    border: 1px solid #DDD;
    border-radius: 3px;
}

code {
  @extend .code-base;
  display: block;
  white-space:pre;
  line-height: 1.2em;
  margin-bottom: 1.2em;
}

span.code {
  @extend .code-base;
  padding: 1px $-xs;
}
/*
* Text colors
*/
p.pos, p .pos, span.pos, .text-pos {
	color: $positive;
}

p.neg, p .neg, span.neg, .text-neg {
	color: $negative;
}

p.muted, p .muted, span.muted, .text-muted {
	color: lighten($text-dark, 26%);
}

p.primary, p .primary, span.primary, .text-primary {
	color: $primary;
}

p.secondary, p .secondary, span.secondary, .text-secondary {
	color: $secondary;
}

/*
* Generic text styling classes
*/
.underlined {
  text-decoration: underline;
}

.text-center {
  text-align: center;
}

.text-left {
  text-align: left;
}

.text-right {
  text-align: right;
}