Knowledge base article image doesn't work with center align from Confluence

Summary

Currently, KB article that contains image with "center align" format , it will not worked. Due to Center-Macro remove from Confluence (https://confluence.atlassian.com/confcloud/we-re-cleaning-up-the-macro-browser-946028471.html) , the workaround is to use "center align" at Confluence site. However , for image , it remain at left side eventhough it already set to center.

Environment

Cloud

Steps to Reproduce

1. Open Service Desk project
2. Go to Knowledge base space and create a page.
3. Type a text and add an image.
4. Set it to "center align". Expected as below :-
   
5. Once publish, view it from Customer Portal.

Expected Results

Image at center of the page.

Actual Results

Image not center.

Workaround

No workaround.