#loginModal .modal-dialog {
    max-width: 768px;
    margin: 0 35rem;
} 
@media (min-width: 1921px){
    #loginModal .modal-dialog {
        max-width: 768px;
        margin: 0 60rem;
    }
}
@media (max-width: 1680px) {
    #loginModal .modal-dialog {
        max-width: 768px;
        margin: 0 27rem;
    }
}
@media (max-width:1440px){
    #loginModal .modal-dialog {
        max-width: 768px;
        margin: 0 20rem;
    }
}
@media (max-width:1366px){
    #loginModal .modal-dialog {
        max-width: 768px;
        margin: 0 20rem;
    }
}
@media (max-width:1280px){
    #loginModal .modal-dialog {
        max-width: 768px;
        margin: 0px 17rem;
    }
}
@media (max-width: 768px) {
    #loginModal .modal-dialog {
        margin: 0 0;
    }
}