public override FrameworkElement GetElement(string fileName) { var maxWidth = SystemParameters.WorkArea.Width - 100; var maxHeight = SystemParameters.WorkArea.Height - 100; var webBrowser = new WebBrowser(); webBrowser.BeginInit(); webBrowser.Width = maxWidth / 2; webBrowser.Height = maxHeight / 2; webBrowser.EndInit(); webBrowser.Navigate(new Uri(fileName, UriKind.Absolute)); return webBrowser; }