I'd really like a set of elements like this that is truly HTML + CSS. Vanilla. Layer on some _optional_ JS for some enhancements.

But this franken <form> element requires JavaScript to even render. Same for the tooltip, leader, cover, totop, ++ components; all of which can be done with HTML and CSS.

Fine, write your HTML is JS, but that isn't "HTML first".

edit: I stand corrected. the form will render without JS. The tab element in the docs wrapping the form doesn't render.