    addSubview(startMessaging)

    NSLayoutConstraint.activate([
      logoImageView.topAnchor.constraint(equalTo: topAnchor),
      logoImageView.leadingAnchor.constraint(equalTo: leadingAnchor, constant: 55),
      logoImageView.trailingAnchor.constraint(equalTo: trailingAnchor, constant: -55),
      logoImageView.heightAnchor.constraint(equalTo: logoImageView.widthAnchor),

      welcomeTitle.heightAnchor.constraint(equalToConstant: 50),
      welcomeTitle.bottomAnchor.constraint(equalTo: startMessaging.topAnchor, constant: -10),
      startMessaging.centerXAnchor.constraint(equalTo: centerXAnchor),
      welcomeTitle.centerXAnchor.constraint(equalTo: centerXAnchor)