Style sub-totals/totals section in single product page

Hi. I am not a coder and would like some help to style this section of the woocommerce single products.

Is any one able to help me with code to make the background black, change the font style and size and remove any borders so it fits in with the rest of the website styling?

Thanks in advance.

The page I need help with: [log in to see the link]