target members via css

HI, I have 2 magazine elements on this page: http://andesworldtravel.com/nature-culture-peru/ – one for members (top one) and one for nonmembers (bottom one). I have given them each a custom css class of “members” and “nonmembers – how do I target that in my css so they show/hide to the right group? I know I could make a new page and menu for members only, but would like to know if I can do it in the same page…

thanks for taking a look
Nancy

https://ww.wp.xz.cn/plugins/wordpress-access-control/