body {
  font-family: Arial, sans-serif;
  margin: 0;
  padding: 0;
}

header {
  background: #333;
  color: #fff;
  padding: 1em;
}

header h1 a {
  color: #fff;
  text-decoration: none;
}

nav a {
  color: #fff;
  margin-right: 1em;
  text-decoration: none;
}

main {
  padding: 1em;
}

ul {
  list-style: none;
  padding: 0;
}

ul li {
  margin-bottom: 0.5em;
}