html,
body {
  height: 100%;
  margin: 0;
  padding: 0;
  width: 100%;
}
html {
  font-size: 14px;
  line-height: 1.5;
}
code,
pre {
  background: rgba(0,0,0,0.04);
  border-radius: 3px;
  padding: 3px;
}
code {
  white-space: nowrap;
}
h1 {
  font-size: 1.75rem;
}
h2 {
  font-size: 1.5rem;
}
h3 {
  font-size: 1.25rem;
}