Delete the menu from one page

Hello,
I would not have the menu just on a site page.
How can I do?
Thank you

Hello Diego,

Can you please provide a link to that page?

Kind Regards, Roman.

Hello,
The page does not exist, I just want to know if you can not have the menu on one or more hypothetical site pages …
Thank you

Yes, you can do that. In menu setings, you can chose where the menu will be placed.

I tried but it does not work … if you delete the menu you do it on all pages …

Hello Diego,

Please try to use the following CSS code in order to hide (not remove) the menu on page with ID 256.

You can add CSS code in Dashboard → Appearance → Customize → Additional CSS (WordPress 4.7 and up).

body.page-id-256 nav#mainnav {
    display: none;
}

You can modify the code above by changing 256 to any other page ID. You can check this link if you don’t know where to find a page ID:

Please feel free to ask any other questions that you might have.

Kind Regards, Roman.

Thank you so much.
If I can help … always on the same page I should also hide the black bar and also the logo.
In practice I have a window with a video that should be positioned to the top left without any margins …
Thanks again

Hello Diego,

Try to use this CSS code instead of previous:

body.page-id-256 #masthead {
    display: none;
}

Kind Regards, Roman.

perfect thanks

You are welcome Diego,

Kind Regards, Roman.