body {
  font-family: sans-serif;
  background-color: #f4f4f4;
  color: #333;
  padding: 20px;
  text-align: center;
}

section {
  margin-bottom: 30px;
  padding: 15px;
  border: 1px solid #ccc;
  border-radius: 10px;
  background: #fff;
  max-width: 400px;
  margin-left: auto;
  margin-right: auto;
}

button {
  padding:10px 20px;
  border:none;
  margin: 10px;
  font-size: 16px;
  cursor: pointer;
}