Can't remove Paragraph/Blank space in slide down menu

I am trying to get rid of a blank space in the following slide down menu: https://eefb.org/archive/

I want the same space between all the names.

When I look at the code, I see new paragraphs that I cannot get rid of in the wordpress HTML editor. Here is the code I used:

Radu Muntean<div id=”mydiv” style=”display:none; overflow:hidden; height:40px;”>The Paper Will Be Blue
Tuesday After Christmas</div>

I am grateful for any advice, I’ve been working on this for too long…