/* Menü einblenden per CSS */
.no-js-tag .button-menu + .menu:active,
.no-js-tag .button-menu:focus + .menu {
    right: 0;
}

.no-js-tag .button-menu-service + .menu-service:active,
.no-js-tag .button-menu-service:focus + .menu-service {
    left: 0;
}