Is there any option in the knowledge base authoring options to directly edit the HTML code? I didn't see one. For example, in this editor, there is an HTML tab. But I didn't see one in the editor for the knowledge base itself. Am I missing something? Is there a plugin I can get?
I would highly recommend you to please post this idea at our ideas forum (here).
Our product team, who monitors the forum regularly, can read your specific use case and understand why this would be a useful functionality or change. It also helps other customers facing the same issue to advocate for its implementation on your behalf by upvoting on the thread as well.
If you're looking for more information about knowledge base design, layout, and styling, including custom HTML/CSS, I encourage you to check outthis postfrom our knowledge base Product manager.