@media (min-width: 992px) and (min-width: 991px) {
 .navigation .gva_menu .sub-menu > li:hover > ul {
   -webkit-transform: rotateX(0);
        -moz-transform: rotateX(0);
        -ms-transform: rotateX(0);
        -o-transform: rotateX(0);
        transform: rotateX(0);
}
}