Quote Box in Text Editor (change background Color and Font size) Theme The7

Hi there,
i´m using The7 since a year.
Now i want to change background color and font size of the Quote Box. Any idea where i can change parameters of the Text Editor Quote Box?
Greets from Germany

Hello @Team-Transitfrei

The author of theme, @Dream-Theme can help you with this on this support portal, at this address: http://support.dream-theme.com/?envato_item_id=5556590