body {
  font-family: Arial, sans-serif;
  background-color: #f9f9f9;
  color: #333;
  margin: 0;
  padding: 0;
}


header {
  background-color: #0044cc;
  color: white;
  text-align: center;
  padding: 20px 0;
}


a {
  color: #0044cc;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

section {
  padding: 20px;
  margin: 10px auto;
  max-width: 800px;
  background-color: white;
  border-radius: 8px;
  box-shadow: 0 0 10px rgba(0,0,0,0.1);
}