

.account_tree_class .o_list_table thead > tr>th:nth-child(4)  {
    width: 200px !important;
    max-width: 200px !important;  
}
    
 .event_tree_class .o_list_table thead > tr>th:nth-child(2){
  width: 300px !important;
  max-width: 300px !important;
  } 

  
