ContentView 
   - StackView
       - Fixed Height UILabel
       - UIView (Webview Container)
       - Fixed Height UILabel
       - ... more views

func prepareQuestionWebView() {
        let webConfiguration = WKWebViewConfiguration()
        let contentController = WKUserContentController();
        webConfiguration.userContentController = contentController
        webView = WKWebView(frame: CGRect(origin: CGPoint.zero, size: questionView.frame.size))
        webView?.scrollView.isScrollEnabled = false
        webView?.scrollView.bounces = false
        webView?.scrollView.bouncesZoom = false
        webView?.autoresizingMask = [.flexibleWidth, .flexibleHeight]
        webView?.translatesAutoresizingMaskIntoConstraints = false
        webView?.tag = -1
        webView?.navigationDelegate = self
        questionView.removeAllSubviews()
        questionView.addSubview(webView!)
        webView?.contentScaleFactor = 1
    }

@IBOutlet weak var questionView: UIView!
@IBOutlet weak var rootStack: UIStackView!

func webView(_ webView: WKWebView, didFinish navigation: WKNavigation!) {
        if webView.isLoading == false {
            DispatchQueue.main.asyncAfter(deadline: .now() + 1.0) { 
               webView.evaluateJavaScript("document.body.scrollHeight", completionHandler: { (result, error) in
                    if let height = result as? CGFloat {
                        self.setHeightData(height, webView)
                    }
                })
            }
        }
    }

    func setHeightData(_ height: CGFloat, _ wv: WKWebView) {
        switch wv.tag {
            case -1:
                questionView.frame = CGRect.init(x: 0, y: 36, width: rootStack.frame.width, height: height)
            default:
                break
        }
        wv.layoutSubviews()
        questionView.layoutIfNeeded()
        rootStack.layoutSubviews()
        rootStack.layoutIfNeeded()
    }