Hi after updated Xcode8 not able to set
scrollView.contentSize = CGSizeMake(self.view.frame.size.width, 700)
From Swift 3
CGSizeMake is not available use
CGSize init instead.
scrollView.contentSize = CGSize(width: self.view.frame.size.width, height: 700)
Check the Apple Documentation on Core Graphics as of from Swift 3 they have made a lot of changes.