.menuActive {
    visibility: visible !important;
    left: 0 !important;
    transition: left 0.3s;
}

#sidebar_menu, .sidebar_menu {
    visibility: hidden;
    width: 100%;
    position: fixed;
    top: 0;
    left: -100%;
    height: 100%;
    overflow-y: auto;
    overflow-x: hidden;
    background-color: #fff;
    z-index: 999;
}

@media (min-width: 290px) {
    #sidebar_menu, .sidebar_menu {
        width: 50% !important;
        min-width: 290px;
    }
}