I want before the H2 some more whitespace how do I do this with padding or margin? Can someone place it for me there for example 20px before the H2

If I go to adding custom CSS I have a error in my database 3 argumenst are required, 2 given.
https://prnt.sc/MITqJ1ZHfCZa

https://www.offirent.be/administrator/index.php?option=com_easyblog&view=themes&layout=custom