table.dataTable thead th[data-is-resizable=true] {
    border-left: 1.5px solid transparent;
    border-right: 1.5px dashed #4cff00;
}
table.dataTable thead th.dt-colresizable-hover {
    cursor: col-resize;
    background-color: #92ccb3;
    border-left: 1.5px solid #4cff00;
}
table.dataTable thead th.dt-colresizable-bound-min, 
table.dataTable thead th.dt-colresizable-bound-max {
  opacity: 0.3;
  cursor: not-allowed !important;
}