func setAttributes(price : String)-> NSAttributedString {
    let font:UIFont? = UIFont.boldSystemFont(ofSize: 22)
    let fontSuper:UIFont? = UIFont.boldSystemFont(ofSize: 15)
    let aDotRange = (price as NSString).range(of: ".")

    let attString:NSMutableAttributedString = NSMutableAttributedString(string: price, attributes: [.font:font!])

    attString.setAttributes([.font:fontSuper!,.baselineOffset:5], range: NSRange(location:0,length:1))

    attString.setAttributes([.font:fontSuper!,.baselineOffset:5],
                            range: NSRange(location:aDotRange.location,length:4))
    attString.setAttributes([.font:font!],
                            range: NSRange(location:1,length:aDotRange.location - 1 ))
    attString.setAttributes([.font:fontSuper!],
                            range: NSRange(location:aDotRange.location + 4,
                                           length: (price.count) - (aDotRange.location + 4) ))
    return attString
}

lblPrice.attributedText = self.setAttributes(price: "$249.99 / mon")
    lblPrice.layer.cornerRadius = 4
    lblPrice.layer.borderWidth = 1.0
    lblPrice.layer.borderColor = UIColor.blue.cgColor