Centering All Images in Mobile Devices

[Claude203 12]

Hi I am trying to learn how to make all images centered and mobile devices. I've tried different ways of using CSS but have not been able to mail it yet. Also, even though the newest version of WordPress Claims to center all images, this does not appear to be the case under DMS. Probably because DMS overrides that new feature. But anyway, does anyone happen to know how to pull this off. Thank you.