     public override func layoutSubviews() {
         self._scrollView.size = self.size
         self._rearrangeTagViewsStartingFromIndex(0)
+        self._updateScrollViewContentHeight()
     }
 }
 

        scrollView.contentSize = self.size
        self._scrollView = scrollView
        self.addSubview(scrollView)
        
        //
        scrollView.backgroundColor = UIColor.Green22CCAA().withAlpha(0.2)
    }
}


            let newOrigin: CGPoint = self._originForTagView(tagView)
            if newOrigin != tagView.origin {
                tagView.origin = newOrigin
            }
        }
    }
