Remove Navigation, Footer and Pre-footer from one page using Hayden Template

Please, I need some help to remove the navigation, footer and pre-footer from only select pages on the Hayden template.

Thanks!

add to Home > Design > Custom CSS

body#collection-540e1937e4b084aa623896a6 header#header {
    display: none;
}
body#collection-540e1937e4b084aa623896a6 footer#footer {
    display: none;
}
body#collection-540e1937e4b084aa623896a6 div#preFooter {
    display: none;
}

Replacing body...a6 with page id. each page will have different ID. See how to find page id.