body {
  font-family: 'Segoe UI', sans-serif;
  background-color: #111;
  color: #eee;
  margin: 0;
  padding: 0;
  text-align: center;
}

header {
  background-color: #1f1f1f;
  padding: 2em;
  border-bottom: 2px solid #444;
}

.hero {
  padding: 3em;
}

footer {
  background-color: #1f1f1f;
  padding: 1em;
  font-size: 0.9em;
  color: #aaa;
  border-top: 2px solid #444;
}