Neocities.org
add within the of your page this link to where your code is at ex. and then add the code in menu-html to create a in the html code of your page.
added hamburger nav to my page css code is in https://manythings.neocities.org/styles/menu.css and the (original) html is at https://manythings.neocities.org/styles/menu-html.txt you add the code like this;
ᚷᚱᛖᛖᛏᛁᛜᛊ - ᚦᚨᚾᚲᛊ!