CSS Help on Shop page

On my Shop page, the products are all left aligned, meaning the images, product name, and price are all aligned along the left border of the div. You can view my site here…
http://videogeo.com/devWP/

I would like the products center aligned and surrounded by a border, just like the products on the following webpage…
http://www.jeffreyjamesbotanicals.com/shop/

Thanks in advance for all help.

https://ww.wp.xz.cn/plugins/woocommerce/