docs/docs/_sass/base/_base.scss
// Base
// -----------------------------------------------
// -----------------------------------------------
// Body, html
// -----------------------------------------------

html {
  box-sizing: border-box;
  font-size: $base-font-size;
}

*,
*::after,
*::before {
  box-sizing: inherit;
}

body,
html {
  height: 100%;
  transition: background-color 300ms $base-timing;
}
// Typography
// -----------------------------------------------

body {
  font-family: $base-font-family;
  line-height: $base-line-height;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  color: $header-font-color;
  font-family: $header-font-family;
  font-weight: $font-semibold;
}

a {
  color: $brand-primary;
  text-decoration: none;
  transition: color $base-duration $base-timing;

  &:visited {
    color: $brand-primary;
  }

  &:hover {
    color: $link-hover;
    text-decoration: underline;
  }

  &:active {
    color: $brand-primary;
  }
}

hr {
  display: block;
  border: none;
}

// Gitter action bar fix
.gitter-chat-embed-action-bar {
  z-index: 11;
}
