html {
  box-sizing: border-box;
  -webkit-font-smoothing: antialiased;
  -mox-osx-font-smoothing: grayscale;
}

*,
*::before,
*::after {
  box-sizing: inherit;
}

h1,
p,
blockquote,
ul {
  max-width: 30em;
}

blockquote p {
  max-width: 100%;
}

pre {
  overflow-x: auto;
}