body {
  font-family: Arial, sans-serif;
  background: #f4f4f4;
}

.login-box {
  max-width: 320px;
  margin: 120px auto;
  padding: 20px;
  background: #fff;
  border-radius: 8px;
  text-align: center;
}

input, button {
  width: 100%;
  padding: 10px;
  margin-top: 10px;
}