datat.fi/docs/_sass/basically-basic/_base.scss

/* ==========================================================================
   Base elements
   ========================================================================== */

html {
  @include fluid-type($min-vw, $max-vw, $min-font-size, $max-font-size);
}

body {
  display: -ms-flexbox;
  display: flex;
  background: $background-color;
  color: $text-color;
}

blockquote,
q {
  color: tint($text-color, 40%);
  font-style: italic;

  cite {
    font-size: 80%;
    font-style: normal;
    font-weight: bold;

    &::before {
      padding-right: 0.25rem;
      content: '\2014';
    }
  }
}

code,
kbd,
samp,
pre {
  font-family: $monospace-font-family;
}

kbd {
  display: inline-block;
  margin: 0 0.125em;
  padding: 0.125em 0.5em;
  border: 1px solid rgb(204, 204, 204);
  border-radius: 3px;
  background-color: rgb(247, 247, 247);
  text-shadow: 0 1px 0 #fff;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.25), inset 0 0 0 2px #fff;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: $headline-font-family;
  text-rendering: optimizeLegibility; /* enable common ligatures and kerning */
}

h1 {
  @include fluid-type($min-vw, $max-vw, $h1-min, $h1-max);
}

h2 {
  @include fluid-type($min-vw, $max-vw, $h2-min, $h2-max);
}

h3 {
  @include fluid-type($min-vw, $max-vw, $h3-min, $h3-max);
}

h4 {
  @include fluid-type($min-vw, $max-vw, $h4-min, $h4-max);
}

h5 {
  @include fluid-type($min-vw, $max-vw, $h5-min, $h5-max);
}

h6 {
  @include fluid-type($min-vw, $max-vw, $h6-min, $h6-max);
}

dt {
  font-weight: bold;

  &:not(:first-child) {
    margin-top: 1rem;
  }
}

dd {
  margin: 0;
}

pre {
  @include fluid-type($min-vw, $max-vw, 12px, 14px);
}

figcaption {
  margin: 0.5rem 0;
  font-size: 80%;
}

a {
  color: $accent-color;

  &:hover {
    color: shade($accent-color, 25%);
  }
}

*:focus {
  border-color: $accent-color;
  outline: none;
  box-shadow: 0 0 10px $accent-color;
}