https://datatables.net/upgrade/2#dom-property """ dom is still available in DataTables 2 (likely it will be dropped in v3 whenever that happens!), but the default CSS for DataTables has been updated for layout and does not include styling for dom. If you need to continue using dom, you will likely need to add some CSS to position the elements as you need. However, you are strongly encouraged to update to using layout. """