Vertical Spacing between elements

Hello,
Thank you for resolving the video overlapping the homepage!
However, I am still having problems with vertical spacing between video elements. I'm using paragraph breaks to insert text after my video Iframe. If I do not use the paragraph break I'll sometimes lose the text. When I use the paragraph breaks I have large spaces between videos (see attached). Is there a way to modify the space created by the paragraph break used in conjunction with the YouTube video? When I started posting YouTube videos weeks ago there was no problem. Is there a key sequence that I'm using that could be creating this? I'm using a Mac.
Thanks, Dave Johnston

Use ctrl-return or edit the source and insert a <br>