body.customers_login {
  background: url('https://www.6thavenuecarwash.com/wp-content/uploads/2021/10/bubbles-1.jpg') no-repeat center center fixed; /* The full image url*/
  -webkit-background-size: cover;
  -moz-background-size: cover;
  -o-background-size: cover;
  background-size: cover;
}