body {
  font-family: Arial, sans-serif;
  background: #f5f5f5;
  margin: 0;
  padding: 20px;
}

.container {
  background: #fff;
  padding: 30px;
  max-width: 800px;
  margin: auto;
  border-radius: 10px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.1);
}

h1 {
  color: #007acc;
}

ul {
  padding-left: 20px;
}

.btn {
  display: inline-block;
  margin-right: 10px;
  margin-top: 15px;
  padding: 10px 20px;
  background: #007acc;
  color: white;
  text-decoration: none;
  border-radius: 5px;
}

.btn:hover {
  background: #005fa3;
}