Adding CSS to ChronoConnectivity Table

I am trying to do two things with a CC table using Custom CSS. I have the CSS code, but how do i link it to the specific field and the table?
​
1. Display counts inside a perfect circle - circle is oval for single digits
2. Make the table size responsive to mobile screens. Currently the columns and content go vertical and need to resize this to a smaller screen to preserve the table format.

there's a custom CSS element, just do {view:customcssname} in your event
​
Use the class and or id of the table to target it