@media screen and ( max-width: 400px ){

    li.page-item {

        display: none;
    }

    .page-item:first-child,
    .page-item:nth-child( 2 ),
    .page-item:nth-last-child( 2 ),
    .page-item:last-child,
    .page-item.active,
    .page-item.disabled {

        display: block;
    }
}