Topic: FaceBook Login Issue

Hello,

1) //facebook/int_callback/ – https://xstore.helpscoutdocs.com/article/87-facebook-login
Also, check if file_get_contents() function is enabled in the server configuration and increase max input vars limit on your server to 3000.
Reply back after these actions and provide admin panel and FTP access to your site it FB login still does not work.
2) You can add this code in Theme Options > Custom css > Global custom css:

.et-facebook-login-wrapper {
    text-align:  left;
    position:  absolute;
    bottom: 0;
}
@media only screen and (max-width: 991px) {
    .et-facebook-login-wrapper {
        bottom: -9%;
    }
}
@media only screen and (max-width: 480px) {
    .et-facebook-login-wrapper {
        bottom: -5%;
    }
}

Regards