I just noticed my solution doesn’t really does it’s job, just figured out this bug happens if you are logged in on wordpress. It calculates the height of the admin bar of WP and tops that with the navigation, but the navigation is sticky and wordpress admin’s bar is not so you will always see that empty space on the top as soon as you scroll.
I can give you the url but you won’t see much, login on your own flash demo and you’ll be able to see it on the mobile version as soon as you scroll down.
https://new.dioxy.nl
