body {
  font-family: Arial, sans-serif;
  max-width: 800px;
  margin: 0 auto;
  padding: 20px;
  line-height: 1.6;
  color: #333;
}

h1 {
  color: #2c3e50;
  text-align: center;
}

header, footer {
  text-align: center;
  padding: 10px;
  background: #f4f4f4;
}

ul {
  list-style-type: disc;
  padding-left: 30px;
}