bencoveney/Milligrid

html {
  box-sizing: border-box;
  // The base font-size is set at 62.5% for having the convenience
  // of sizing rems in a way that is similar to using px. 1.6rem=16px
  font-size: 62.5%;
}

body {
  color: $foreground-color;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif, 'Apple Color Emoji', 'Segoe UI Emoji', 'Segoe UI Symbol';
  font-weight: 400;
  letter-spacing: .01em;
}

@mixin reset {
  // Set box-sizing globally to handle padding and border widths
  box-sizing: inherit;

  font-size: 1.5rem;
  line-height: 1.6;

  // Include a basic reset as many text elements have spacing which interferes with the vertical flow.
  margin: 0;
  padding: 0;
}

// Reset options
* {
  @include reset;

  ::after,
  ::before {
    @include reset;
  }
}

// Link styling
a {
  &:link,
  &:visited,
  &:hover,
  &:active {
    color: $theme-color;
  }

  :hover {
    text-decoration: none;
  }
}

// Header styling
h1 {
  background-color: $background-color-shaded;
  border-bottom: .1rem solid $theme-color;
  font-size: 3rem;
  font-weight: 100;
  margin: 2.4rem 0 - $gutter-width 2.3rem;
  padding: 0 $gutter-width;
}

h2,
h3,
h4,
h5,
h6 {
  display: inline-block; // Prevent margins collapsing.
  min-width: 100%;
}

h2 {
  font-size: 2.2rem;
  margin-top: 1.3rem;
}

h3 {
  font-size: 2rem;
  margin-top: 1.6rem;
}

h4 {
  font-size: 1.8rem;
  margin-top: 2rem;
}

h5 {
  font-size: 1.6rem;
  margin-top: 2.3rem;
}

h6 {
  font-size: 1.4rem;
  margin-top: 1.3rem;
}

// Text element styling
p {
  margin-bottom: 2.4rem;
}

small {
  color: $foreground-color-lightened;
  font-size: .75em;
}

// List styling
ul,
ol {
  display: inline-block;
  margin-bottom: 2.4rem;
  margin-left: $gutter-width * 3;
}

// Code styling, both inline and multi-line
@mixin code-font {
  background-color: $theme-color-light;
  font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, Courier, monospace;
}

code {
  @include code-font;

  font-size: .9em;
  padding: 0 .3em;
}

pre {
  @include code-font;

  display: block;

  code {
    @include code-font;

    display: block;
    font-size: 1.5rem;
    margin: 0 1.2rem;
    padding: 1.2rem;
  }
}