/* Remove this if you dont want background overlay over the image or adjust per your needs */

.login_admin {
  background: url('https://crm.wikesa.com/media/login_bg.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;
}