Form name in login form attacks

I have some difficulties with the module Login Brute Forcing/Login brute attacks. We need to identify the form name to use it in hydra. But, the form seems to be just a modal(popup) and I am not able to find it in the code source with the inspector. If somebody can help me, thanks to you.

You have to go to the login.php url path http://YOUR-IP/login.php. The root directory is the basic HTTP authenticate you have bypassed in the past section.

No I have not ignored. But I have found it alone.

Send screen capture if you are still stuck