body {
  font-family: Arial, sans-serif;
  margin: 20px;
  background: #f7f7f7;
}
h1 {
  color: #333;
}
textarea {
  width: 100%;
}
button {
  margin-top: 10px;
  padding: 10px 20px;
  background-color: #4CAF50;
  color: white;
  border: none;
  cursor: pointer;
}
button:hover {
  background-color: #45a049;
}