Text box

First I wish to pint out that I am a beginner. When I write a text in a “text box” and I want to add a space between one line and another or between two paragraphs, with other themes I give 2 times “Enter” (e.g. Elementor) or, if it doesn’t work, I always used the “& n b s p ;” tag. I saw that with Enfold it doesn’t work, so I tried with “< b r / >” but it didn’t work, then randomly I put “< s p a n c l a s s = ” s t y l e 8 ” > < / s p a n> ” and this inserts a line but I’m not sure if that’s the correct command.
Thanks