.no-highlight {
    box-shadow: inset 0 0 0 #ddd !important;
}

th {
    white-space: nowrap;
}

#topheader th {
    white-space: nowrap;
    border-bottom: 0px;
}

thead th:first-child {
    left: 0;
    z-index: 1;
}
  
tbody th {
    position: -webkit-sticky; /* for Safari */
    position: sticky;
    left: 0;
}

thead th {
    position: -webkit-sticky; /* for Safari */
    position: sticky;
    top: 0;
}