Questions

1. The application currently only reacts to the user changing the content using the keyboard. It is possible that the user could use the context menu to paste the text in. Enhance the HtmlHandler method to cope with the user pasting text in.
2. We added H1 to H3 support. HTML also supports H4, H5, and H6. Add support for these tags.
3. In the CanHandle code, we are calling the Visitable code. Change the base Handler class so that it calls the Accept method.