.table-fixed tbody {
    height: 500px;
    overflow-y: overlay;
    width: 100%;
    }
    .table-fixed thead,
    .table-fixed tbody,
    .table-fixed tr,
    .table-fixed td,
    .table-fixed th {
    display: block;
    }
    .table-fixed tr:after {
    content: "";
    display: block;
    visibility: hidden;
    clear: both;
    }
    .table-fixed tbody td,
    .table-fixed thead > tr > th {
    float: left;
    }

/* width */
::-webkit-scrollbar {
    width: 10px;
}

/* Track */
::-webkit-scrollbar-track {
    background: #f1f1f1; 
}

/* Handle */
::-webkit-scrollbar-thumb {
    background: #888; 
}

/* Handle on hover */
::-webkit-scrollbar-thumb:hover {
    background: #555; 
}