 
     private func makeConstraints() {
         let container = self
-        let padding = UIEdgeInsetsMake(4, 8, 4, 8)
 
         lockImageView.snp_remakeConstraints { make in
             make.centerY.equalTo(container).centerY

            }
        }
    }
}

private class ReaderModeButton: UIButton {

    override init(frame: CGRect) {
        super.init(frame: frame)
        self.backgroundColor = UIColor.whiteColor()
        self.layer.cornerRadius = 5

        lockImageView = UIImageView(image: UIImage(named: "lock_verified.png"))
