.login-agent-background-image{background:url("/img/auth/home-key.jpg") no-repeat center center fixed;background-size:cover;}.login-private-background-image{background:url("/img/auth/home-key.jpg") no-repeat center center fixed;background-size:cover;}.register-agent-background-image{background:url("/path/to/your-background-image.jpg") no-repeat center center fixed;background-size:cover;}.register-private-background-image{background:url("/path/to/your-background-image.jpg") no-repeat center center fixed;background-size:cover;}