How do I Center Gallery Images on Mobile???

[loper2012]

On the site I'm working on, there is an uneven number of Sponsored logos so the fifth one appears left align on a mobile device, what coding should I add so that it centers the odd one? These are placed by using the gallery function. Please help! That's the only thing that is bugging me about this site.

http://preview.editmysite.com/ikjb0b.3ddafd04b4c3465db43a6a1458b1522d

[Adam7]

The best solution I've seen for something like that is to use the Hide app from the App Center:

https://www.weebly.com/app-center/hide?ref=ac-search

Basically, you use to Hide elements: one that shows what you have now on desktop, then a second one that has all of the logos on top of one another already.