body {
  background-color: #e5e5e5;
}
body .login {
  width: 400px;
  height: 400px;
  position: fixed;
  top: 50%;
  left: 50%;
  margin-left: -200px;
  margin-top: -200px;
  background-color: #fff;
  padding: 40px;
}
