How to do centering in hesk?

Question

CRM

Good evening!

I feel that the question is simple, but nonetheless. I set up HESK3 for myself. There remains one unresolved problem.

When compiling an article for the knowledge base, I specify the centering of the picture in the editor. It is visually centered. Then I save - I check, there is no centering. After digging a little, I found that for centering, the visual editor adds "display: block", which is then thrown out during the recording process.

I feel there must be a list of valid tags somewhere. But I can't figure out where. Also I can't figure out which editor is used when editing articles in Knowlegebase.

Who faced such a problem, tell me how you solved it?