 }
 
 let viewController = ViewController()
-viewController.view.backgroundColor = .white
 PlaygroundPage.current.liveView = viewController
 
 //: [Next](@next)

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)

class ViewController: UIViewController {
    
    private lazy var textField: UITextField = {
        let textField = UITextField(frame: textFieldOriginalFrame)
        textField.borderStyle = .line
        textField.placeholder = "Text Field"

    override func viewDidLoad() {
        super.viewDidLoad()

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

        NotificationCenter.default.addObserver(
            self,
