body {
  font-family: Arial, sans-serif;
  line-height: 1.6;
  margin: 0;
  padding: 0;
  background-color: #f4f4f4;
  color: #333;
}

header {
  background-color: #333;
  color: white;
  padding: 20px 0;
  text-align: center;
}

main {
  padding: 20px;
}

section {
  background: white;
  padding: 20px;
  margin-bottom: 10px;
  border-radius: 5px;
  box-shadow: 0 0 5px rgba(0,0,0,0.1);
}

footer {
  text-align: center;
  padding: 10px;
  background-color: #eee;
  font-size: 14px;
}