body {
  font-family: Arial, sans-serif;
  text-align: center;
  margin: 0;
  padding: 0;
  background: #f2fdf2;
  color: #333;
}

header {
  background-color: #98df8a;
  padding: 20px;
  color: white;
}

main {
  padding: 20px;
}

#preview img {
  width: 200px;
  margin: 20px 0;
}

button {
  padding: 10px 20px;
  font-size: 16px;
  background-color: #28a745;
  border: none;
  color: white;
  cursor: pointer;
  border-radius: 5px;
}

button:hover {
  background-color: #218838;
}

footer {
  margin-top: 40px;
  background: #d4edda;
  padding: 10px;
}