Making a space between post and plugin

Hi there again, lovely people of CRP!

Quick question:

My “Related posts” is veeery close to the bottom of my post. Is there a way that I can make the gap bigger?

I tried adding

padding-top: 10px;

in the css bar, with no success..

Thank you!!

https://ww.wp.xz.cn/plugins/contextual-related-posts/