@media screen and (max-width: 768px) {
    .mobile-column, #consent, #contacts-container, #copyright-container, #choice {
        flex-direction: column;
        align-items: stretch;
    }
    .mobile-column .column:not(.column:last-child) {
        padding-right: 0;
    }
    #navbar, #sidebar {
        display: none;
    }
    #mobile-navbar, .sidebar-mobile {
        display: block;
    }
}