body {
  font-family: sans-serif;
  text-align: center;
  padding: 40px;
  background: #fefefe;
}

#name-list {
  margin: 20px auto;
  max-width: 600px;
  font-size: 14px;
  color: #444;
}

input, button {
  padding: 10px;
  font-size: 16px;
  margin: 5px;
}

#message {
  font-size: 18px;
  margin-top: 20px;
}

.success {
  color: green;
}

.fail {
  color: red;
}