You can add HTML content :
- if you have the privilege
- if you check the “Contains HTML Markup” check box that are present in this views:
- Static Text,
- and No Results
- if you add it in the Advanced Tab.
If you want to be able to add HTML markup in other fields, you have to disable HardenXSS.
To check your privileges :
- Setting / Administration / Manage Privileges / Answers / Save Content with HTML Markup
HTML Tag if you don't see the check box
If you don't see the check box, you can try to add a node <HTML></HTML>.
Tested with version 10.1.3.4 and doesn't work.