Change font size of blank lines

Is there a method to find all blank lines in a document, and change them to a smaller font size?

There are two ways I know of. I’m in LO 5.1.2.2.

You can do a search for blank lines. Open the Find/Replace dialog. Check “regular expressions”. In the Find field place ^$ to find blank lines. Now put the cursor in the Replace field. Click on the Format button, go to Font and spec a small size. Do an individual Find/Replace or two to make sure it’s working, then hit Replace All.

Or, Delete all blank lines using Find/Replace. Then change you paragraph style to afford the desired space between paragraphs. This might be as simple as changing the style from Default to Text Body, which already has some space built in.

Thanks for the response, Paul.
I like where your first option is heading, but I can’t make it work at this stage.
Control H-
Find Field ^$-
cursor in Replace field-
other options-
Format-
Font - select 8-
Replace-

and the line is deleted.
Any suggestions?

Sorry, I forgot something. It’s working, you just need to replace the deleted ^$ now. Place \n in the Replace field, with everything else the same.

Yay!!! terrific, thanks