Hide Navbar on Scroll Down

Hi guys ...;-) Happy New Year !!! I was wondering if somebody could help me out. I have this site : https://elegancefashion.cloud/ ....What I want to do is to make the navbar hidden when scrolling .
Is that possible? Please I would really appreciate your help ...;-)

If you want to hide....why don't disable sticky menu/navbar/header ?

And you can ask theme developer
https://themeforest.net/item/harvest-re ... e/13467276