         flow.footerReferenceSize = CGSize.zero
         flow.minimumInteritemSpacing = 0
         flow.minimumLineSpacing = 0
-        flow.sectionInset = UIEdgeInsets.zero
+        flow.sectionInset = UIEdgeInsets(top:0, left:kCellWidth, bottom:0, right:kCellWidth)
         flow.scrollDirection = UICollectionViewScrollDirection.horizontal
         
         let collectionView:UICollectionView = UICollectionView(frame:CGRect.zero, collectionViewLayout:flow)

            options:[],
            metrics:metrics,
            views:views))
        
        DispatchQueue.main.asyncAfter(deadline:DispatchTime.now() + kAfterSelect)
        { [weak self] in
            
            let index:IndexPath = IndexPath(item:0, section:0)
            self?.collectionView.selectItem(
                at:index,
                animated:false,
                scrollPosition:UICollectionViewScrollPosition())
            
            self?.selectItemAtIndex(index:index)
        }
    }
    
    required init?(coder:NSCoder)

        fatalError()
    }
    
    deinit
    {
        NotificationCenter.default.removeObserver(self)
    }
    
    //MARK: notified
    
    func notifiedFiltersLoaded(sender notification:Notification)
    {
        DispatchQueue.main.async
        { [weak self] in
            
            self?.filtersLoaded()
        }
    }
    
    //MARK: private
    
    private func filtersLoaded()
    {
        collectionView.reloadData()
        
        if model.items.count > 0
        {
            DispatchQueue.main.asyncAfter(deadline:DispatchTime.now() + kAfterSelect)
            { [weak self] in
                
                let index:IndexPath = IndexPath(item:0, section:0)
                self?.collectionView.selectItem(
                    at:index,
                    animated:false,
                    scrollPosition:UICollectionViewScrollPosition())
                
                self?.selectItemAtIndex(index:index)
            }
        }
    }
    
    private func modelAtIndex(index:IndexPath) -> MFiltersItem
    {
