/* style frozen cells */
.wj-cell.wj-frozen:not(.wj-header):not(.wj-group):not(.wj-state-selected):not(.wj-state-multi-selected),
.wj-cell.wj-frozen.wj-alt:not(.wj-header):not(.wj-group):not(.wj-state-selected):not(.wj-state-multi-selected) {
  background: #fffff5
}