// The reference for operatinos supported by Truthy
#reference {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  height: 100%;
  border-right: solid 1px #fff;
  box-sizing: border-box;
  padding: 0 20px;
  padding-bottom: 20px;
  background-color: #222;
  box-shadow: 2px 0 5px 1px rgba(#000, 0.25);
  text-align: left;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform 300ms ease-in-out;
  h2 {
    text-align: center;
  }
  h3 {
    font-size: 18px;
  }
  &.reference-open {
    transform: translateX(0);
  }
}

.reference-close-link {
  position: absolute;
  $link-position: 6px;
  top: $link-position;
  left: $link-position;
  $link-size: 20px;
  img {
    width: $link-size;
    width: $link-size;
  }
}

pre.operation-syntax {
  display: inline-block;
  margin: 0 8px;
  border: solid 1px rgba(#fff, 0.5);
  border-radius: 3px;
  padding: 4px 8px;
  background-color: rgba(#000, 0.25);
  font-family: $monospace;
}

// The reference for operatinos supported by Truthy
#reference {
  position: fixed;
  top: 0;
  left: 0;
  z-index: 100;
  height: 100%;
  border-right: solid 1px #fff;
  box-sizing: border-box;
  padding: 0 20px;
  padding-bottom: 20px;
  background-color: #222;
  box-shadow: 2px 0 5px 1px rgba(#000, 0.25);
  text-align: left;
  overflow-y: auto;
  transform: translateX(-100%);
  transition: transform 300ms ease-in-out;
  h2 {
    text-align: center;
  }
  h3 {
    font-size: 18px;
  }
  &.reference-open {
    transform: translateX(0);
  }
}

.reference-close-link {
  position: absolute;
  $link-position: 6px;
  top: $link-position;
  left: $link-position;
  $link-size: 14px;
  img {
    width: $link-size;
    width: $link-size;
  }
}

pre.operation-syntax {
  display: inline-block;
  margin: 0 8px;
  border: solid 1px rgba(#fff, 0.5);
  border-radius: 3px;
  padding: 4px 8px;
  background-color: rgba(#000, 0.25);
  font-family: $monospace;
}

Decrease size of reference sidebar close link
Decrease size of reference sidebar close link

The larger close link was too close to the sidebar's main heading, so a
smaller close link should give the heading the space it should have.
