contentView.layer.cornerRadius = 20
    contentView.layer.masksToBounds = true

    layer.shadowColor = UIColor.black.cgColor
    layer.shadowOpacity = 0.1
    layer.shadowOffset = CGSize(width: 0, height: 5.0)
    layer.shadowRadius = 5.0
    layer.shadowPath = UIBezierPath(roundedRect: bounds, cornerRadius: contentView.layer.cornerRadius - 3).cgPath
    layer.shouldRasterize = true
    layer.rasterizationScale = UIScreen.main.scale