@media (min-width: 768px) {
    .scrollable-menu {
        height: auto;
        max-height: 600px;
        overflow-x: hidden;
    }
}
@media (max-width: 767px) {
    .scrollable-menu {
        height: auto;
        max-height: 200px;
        overflow-x: hidden;
    }

    .btn-lg {
        font-size:14px;
    }
}