<thead>                                
<tr class="tooltip-demo">                        
<th></th>                                  
<th>Görsel</th>                      
    <th>Ürün Kodu</th>                    
<th>Ürün Adı</th>                        
<th>Orijin</th>                                  
<th>Kategori</th>                          
<th>Marka</th>                              
<th>Adet</th>                                    
<th>Maliyet</th>                          
<th>Satış</th>                              
<th>İndirimli</th>                        
<th>Durum</th>                        
</tr>                              
</thead>

$(document).ready(function(){
$('#memListTable').DataTable({
responsive: true, 
"pageLength": 50, 
"stateSave": true, 
"processing": true, 
"serverSide": true,            
orderCellsTop: true,            
fixedHeader: true,               
"ajax": "icerik.php"             
});
});