https://codepen.io/capnhairdo/pen/qBaGRBV

.table-sticky-wrapper {
}

.table-sticky {
    margin: 0;
    border: none;
    border-collapse: separate;
    border-spacing: 0;
}

    .table-sticky th {
        position: sticky;
        top: 0;
        z-index: 1;
    }

    /* ensure first header cell sits atop everything else when scrolling right */
    /*.table-sticky th:first-child {
        position: sticky;
        z-index: 2;
    }*/

    /* make first column sticky when scrolling right */
    /*.table-sticky td:first-child {
        position: sticky;
    }*/