body {
  font-family: Arial, sans-serif;
  margin: 0;
  color: #234;
}

.hero {
  background: #2e7d32;
  color: #fff;
  padding: 50px 20px;
  text-align: center;
}

main {
  max-width: 1100px;
  margin: auto;
  padding: 20px;
}

section {
  margin: 30px 0;
}

footer {
  text-align: center;
}