Habpanel web directory

Hi,
just for the protokoll, because it’s not clear for me but I guess this is a easy question. I read it severall time to install into the habpanel web directory, I want to know where this directory is.
There is a brilliant help on how to install openhab2 on Linux with a definition for file location.
Is the web directory the /html (static) path or the Site configuration path or…?