Issue with Importing Google Docs into knowledge base

Hi. 

I tried to import articles from google docs to Guide and faced that the text is too small or fond bold in articles after export.

The second issue that In the HTML to many tags with <Span> with unnecessary classes. This tag everywhere, and I need to remove it all the time - it's huge and unnecessary work. 

I copy and passed content to google docs from another site (another help center).

So I'm a little confused; in this case: I should edit the content in the google doc, and after migration -  I should edit the article in the Article Editor - clean HTML code, and so on.

In this case, it faster to add content directly to the article editor without google docs and edit content only one time and get HTML code without garbage - create new articles one by one.

I really want to use the Import google docs function.

Maybe be someone have some recommendation - how most effectively create google documents for import to zendesk (font, text size .....and so on) - and get predictable results.

I found only this article https://support.zendesk.com/hc/en-us/articles/360001228548-Importing-Google-Docs-into-your-knowledge-base?page=1#comments - in the comments, I found the same questions from other people but I didn't find a good solution.

Example:

doc:

How it looks in help center after migration:

Part of Html Code:

one more example - with text is too small after migration: