Custom CSS changes on Pro Sites pricing table

I need help to change the following on my Pro Sites page:
- Have 3 different backgrounds on for every pricing header, right now I just have 2 pricing background of the same color and the featured is different, could you provide the CSS?
- Change the size of the text below the price to make it bigger.

Most of the changes were made during my chat session, and you will see those in the Theme Customizer from WordPress.

Thanks in advance.