CSS for a simple website

styles.css

/* Based on https://blog.koley.in/baserock/ */

@import url('https://fonts.googleapis.com/css?family=Fira+Sans:300');
body {
  font-family: 'Fira Sans', sans-serif;
  line-height: 1.6;
  color: #222;
  max-width: 40rem;
  padding: 2rem;
  margin: auto;
  background: #fafafa;
}
img {
  max-width: 100%;
}
a {
  color: #2ECC40;
  text-decoration: none;
}
h1, h2, strong {
  color: #111;
}