body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
  font-size: 16px;
  overflow-y: scroll;
}

h1 {
  font-size: 32px;
}

h2 {
  font-size: 24px;
}

h3 {
  font-size: 20px;
}

h4 {
  font-size: 18px;
}

b,
strong {
  font-weight: 600;
}

li {
  line-height: 1.5;
}

pre {
  padding: 12px;
  border: 1px solid #f2f2f2;
}

.navbar {
  background-color: hsl(0, 0%, 98%);
  box-shadow: 0 2px 4px -1px rgba(0, 0, 0, 0.15);
}

.dropdown-menu {
  font-size: 15px;
}

#sidebar h2 {
  font-size: 20px;
}

#toc li {
  line-height: 1.625;
}

.ref-arguments {
  font-size: 14px;
  line-height: 1.5;
}

.contents h1,
.contents h2,
.contents h3,
.contents h4 {
  margin-top: -52px;
}

.contents li + li {
  margin-top: 4px;
}