         
         main.view.snp.makeConstraints { (make) in
             make.centerX.equalToSuperview()
-            make.centerY.equalToSuperview().multipliedBy(1 + 12 / 34.0)
+            make.centerY.equalToSuperview().multipliedBy(23 / 17.0)
             make.width.equalToSuperview().multipliedBy(22 / 34.0)
             make.height.equalToSuperview().multipliedBy(18 / 34.0)
         }

        
        before.view.snp.makeConstraints { (make) in
            make.centerX.equalToSuperview()
            make.centerY.equalToSuperview().multipliedBy(0.65)
            make.width.equalToSuperview().multipliedBy(15.5 / 34.0)
            make.height.equalToSuperview().multipliedBy(15.5 / 34.0)
        }

        after.view.snp.removeConstraints()
        
        switch PVIViewType(rawValue: type)! {
        case .home:
            makeHomeConstraints()
        case .mail:
