.overlay {
    height: 100% !important;
    width: 0 !important;
    position: fixed !important;
    z-index: 2000 !important;
    left: 0 !important;
    top: 0 !important;
    background-color: rgba(0,0,0, 0.9) !important;
    overflow-x: hidden !important;
    transition: 0.5s !important;
}