.modal-dialog {
    position: fixed;
    top: auto;
    left: auto;
    right: 0;
    bottom: 80px;
    margin: 0;
}

.modal-dialog .modal-content {
    color: white;
    background-color: rgba(1, 1, 1, 0.9);
    border: 0;
    border-radius: 0;
}

.buttons .btn {
    margin: 0.2rem;
    width: 10rem;
}

@media (min-width: 700px) {
    .modal-dialog {
        min-width: 700px;
    }
}