body {
  font-family: Arial, sans-serif;
  background-color: #f4f6f8;
  margin: 0;
  padding: 0;
}

header {
  background-color: #2c3e50;
  color: white;
  padding: 40px;
  text-align: center;
}

section {
  padding: 30px;
  margin: 20px auto;
  max-width: 800px;
  background: white;
  border-radius: 8px;
}

ul {
  list-style-type: square;
  padding-left: 20px;
}

footer {
  background-color: #2c3e50;
  color: white;
  text-align: center;
  padding: 15px;
}