body {
  margin: 0 auto;
  max-width: 45rem;;
}

body {
  font-family: "Helvetica", "Arial", sans-serif;
  font-size: 1.2rem;
}

body {
  line-height: 1.5;
  padding: 4em 1em;
}

h2 {
  margin-top: 1em;
  padding-top: 1em;
}

body {
  color: #555;
}

h1,
h2,
strong {
  color: #333;
}

a:link {
  color: #2ECC40;
}

a:visited {
  color: #3D9970
}