body {
  background-color: #f0fff0;
  color: #2f4f4f;
  font-family: 'Arial', sans-serif;
  margin: 0;
  padding: 0;
}

header {
  background-color: #228B22;
  color: white;
  padding: 10px 0;
  text-align: center;
}

.footer {
  background-color: #2e8b57;
  color: white;
  text-align: center;
  font-size: 12px;
  padding: 10px 0;
}

h1, h2, h3 {
  font-family: 'Georgia', serif;
}

a {
  color: #008000;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

button {
  background-color: #4caf50;
  border: none;
  color: white;
  padding: 10px 20px;
  text-align: center;
  text-decoration: none;
  display: inline-block;
  font-size: 16px;
  margin: 4px 2px;
  cursor: pointer;
  border-radius: 5px;
  transition: background-color 0.3s;
}

button:hover {
  background-color: #45a049;
}