func getFrame(size: CGSize, fitIn:CGFloat) -> CGSize {
    var ratio: CGFloat = 0.0
    var newH: CGFloat = 0.0
    var newW: CGFloat = 0.0
    if size.width > size.height {
        ratio = size.width / size.height
    } else {
        ratio = size.height / size.width
    }
    newH = fitIn / ratio
    newW = newH * ratio
    return CGSize(width: newW, height: newH)
}