 import PlaygroundSupport
 import Prelude
 
-let textFieldOriginY: CGFloat = 667.0 - 50.0
-let textFieldOriginalFrame = CGRect(x: 0.0, y: textFieldOriginY, width: 375.0, height: 50.0)
+let textFieldOriginalFrame = CGRect(x: 0.0, y: 667.0 - 50.0, width: 375.0, height: 50.0)
 
 class ViewController: UIViewController {
     
-    private lazy var textField: UITextField = {
+    lazy var textField: UITextField = {
         let textField = UITextField(frame: textFieldOriginalFrame)
         textField.borderStyle = .line
         textField.placeholder = "Text Field"

    override func viewDidLoad() {
        super.viewDidLoad()

        self.view.addSubview(textField)
        let tapGesture = UITapGestureRecognizer(
            target: self,
            action: #selector(ViewController.viewTapped)
        )
        self.view.addGestureRecognizer(tapGesture)

        NotificationCenter.default.addObserver(
            self,

}

let viewController = ViewController()
PlaygroundPage.current.liveView = viewController

//: [Next](@next)
