Top Commentators CSS Style Problem!

I am having a problem with the Show Top Commentators plugin (https://www.pfadvice.com/wordpress-plugins/show-top-commentators/). Whenever I display it, there is always a line break. I have done a search to see if other people are having the same problem, and they are. One person said it was a CSS problem. I don’t know much about CSS, so I did a Google search on “CSS style help” to try to help myself. The pages from the result were pretty basic, and the stylesheet for my theme is so … complex.

Please help me out and solve this problem. I really want this to work! My style.css is found at https://www.mrgpt.com/wp-content/themes/bloggingpro_wr/style.css .

Thank you VERY much!