spacing with fold categories

hello, i’m really new at all this…

i am using <?php wswwpx_fold_category_list ($args); ?> in my sidebar.php which is working fine. however, there are these wierd spaces that appear both above and below each parent category. is there any way to get rid of them?

you can view what i am talking about here:
https://www.duanesmets.com/category/sermons/romans/

thank you for your help.