body {
  font-family: Arial;
  background: #f5f5f5;
  padding: 40px;
}

.container {
  max-width: 600px;
  margin: auto;
  background: white;
  padding: 20px;
  border-radius: 10px;
}

input {
  width: 70%;
  padding: 10px;
}

button {
  padding: 10px 20px;
  cursor: pointer;
}

.message {
  background: #eee;
  padding: 10px;
  margin-top: 10px;
  border-radius: 5px;
}