easyui给单个单元格里面的元素添加样式

onLoadSuccess: function (data){
                    var panel =  $('#{$namespace}inList').datagrid('getPanel');
                    var tr = panel.find('div.datagrid-body tr');
                    tr.each(function(){
                        var td = $(this).children('td[field="area"]');
                        td.children("div").css({
                            "text-overflow":"ellipsis"
                        });
                    });
}