body {
  font-family: "Bitter", serif;
  margin: 20px;
}

h1 {
  font-size: 3em;
}

h2 {
  font-size: 1.5em;
}

@media (prefers-color-scheme: dark) {
  body {
    color: #ddd;
    background-color: #222;
  }
}