             closeButton?.rightAnchor.constraint(equalTo: view.rightAnchor, constant: 0.0),
             closeButton?.heightAnchor.constraint(equalToConstant: 52.0),
             closeButton?.widthAnchor.constraint(equalToConstant: 52.0),
-        ].map { $0?.isActive = true }
+            ].map { $0?.isActive = true }
     }
     
     func layoutPageControl() {

            pageControl.centerXAnchor.constraint(equalTo: view.centerXAnchor),
            pageControl.rightAnchor.constraint(equalTo: view.rightAnchor, constant: 0.0),
            pageControl.leftAnchor.constraint(equalTo: view.leftAnchor, constant: 0.0),
        ].map { $0.isActive = true }
    }
    
    func layoutCaptionLabel() {

            ].map { $0.isActive = true }
        
    }

}

// MARK: - UIScrollViewDelegate

extension ViewController: UIScrollViewDelegate {
