html {
  color: #222;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 18px;
  line-height: 1.6;
}

body {
  margin: 0;
  padding: 2rem;
}

main {
  max-width: 760px;
  margin: 0 auto;
}

header {
  margin-bottom: 2rem;
}

.home-intro {
  text-align: center;
}

.home-intro p {
  font-size: 1.2rem;
}

h1,
h2,
h3 {
  line-height: 1.25;
}

a {
  color: #0645ad;
}

img {
  max-width: 100%;
  height: auto;
}

pre {
  overflow-x: auto;
}

code {
  font-size: 0.9em;
}

@media (max-width: 600px) {
  body {
    padding: 1rem;
  }
}

@media print {
  html {
    color: #000;
    font-size: 11pt;
  }

  body {
    padding: 0;
  }

  main {
    max-width: none;
  }

  header {
    margin-bottom: 1rem;
  }

  a {
    color: inherit;
    text-decoration: none;
  }
}