table tr th.is_added_before,
 table thead tr th.is_added_before{
  text-overflow:clip !important;
  overflow: hidden !important;
}

 table tbody tr td.is_added_before{
   text-overflow:clip !important;
   overflow: hidden !important;
 }
 table > thead > tr > th.is_added_before{
   text-align: center;
 }


 /* div.dataTables_scrollHeadInner table tr:nth-child(1) th.is_added_before::before{
   content:"🕒";
 } */