body {
  font-family: Arial;
  text-align: center;
  margin-top: 50px;
}

input, textarea, button {
  display: block;
  margin: 10px auto;
  padding: 10px;
  width: 300px;
}

button {
  background: blue;
  color: white;
  border: none;
  cursor:pointer;
}