Grid view and paypal button customization

hi guys,

I need your help for 2 problems

– i can’t customize the grid view for products, pictures appear very distant from each other and adjusting margins or padding doesn’t help. Any clue? http://officinarenovatio.it/all-products/

-I can’t customize the paypal button either, whereas i managed to change all the other buttons. http://officinarenovatio.it/checkout/

thanks for all your support

http://ww.wp.xz.cn/extend/plugins/ready-ecommerce/