How to Change membership package from Horizontal to Vertical?

I have seen a setting somewhere in my Site Admin weeks ago prior to updating to 8.1
I have searched every setting and can’t remember where I saw it.

I wish to change the displayed view that the customer sees on the front end, to display membership packages to choose from, in a Vertical view. my site currently shows them as Horizontal. (one under the other) with no roll over effect.

I prefer the vertical view to be displayed with the roll over effect.

Does anybody know where this setting is?

🙂