Hurmm.. There is no styles for the plugin. You can put whatever you want in the Oops content area in the settings screen. Do you have a site I can look at to get a better understanding on what your issue is?
The site is currently local, which is a big issue when trying to get support for my themes etc.
Okay well that being said, whatever HTML you put in the setting screen will match the styles of your site.
My main issue is centring the product, which is displayed by using the shortcode:
[product id='{{product_id}}’]
Encasing it in a div with alignment styles does not place it in the centre of the screen.
That is a standard WooCommerce shortcode, that is not anything with PPP plugin.
http://docs.woothemes.com/document/woocommerce-shortcodes/#section-7
