Style quotes element in Rich Text in CMS collection

Can someone now found a solution to the problem with styling Rich Text in CMS collection?
I mean something like this:

What is the problem with styling quotes in a CMS RT? Style them in a RT that is not CMS but share the same class. Select the quote element, in the selector list chose “All quotes” and then limit the effect to the class just under.

How change style for CMS Rich Text if need to do “Dolor sit amet” title is blue and smaller?

Look at Blog Posts CMS Collection:

I’d like to know that also. How can collaborators add the source/name to a quote?

Did anyone ever figure this out?

Here is: Sweet Text for Webflow Rich Text by Finsweet