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

input, button {
  margin: 5px;
  padding: 10px;
}

.login-box, form {
  background: #fff;
  padding: 20px;
  display: inline-block;
  border-radius: 8px;
  box-shadow: 0 0 10px #ccc;
}