body {
  font-family: sans-serif;
  max-width: 600px;
  margin: 2rem auto;
  padding: 1rem;
}
input, textarea, button {
  display: block;
  width: 100%;
  margin-bottom: 1rem;
  padding: 0.5rem;
  font-size: 1rem;
}
button {
  background-color: #0070f3;
  color: white;
  border: none;
  cursor: pointer;
}
button:hover {
  background-color: #005bb5;
}