Maybe it’s the contrived example but I’m not convinced. First I understand that if a user disable JavaScript then it has a functioning fallback, but can’t accep

Maybe it’s the contrived example but I’m not convinced. First I understand that if a user disable JavaScript then it has a functioning fallback, but can’t accept browser double rendering(first pass HTML, second JavaScript and with potential layout shift) and with the risk of breaking accessibility, one should take for granted that the tooltip library has proper accessibility integrated. Then one thing that I will never understand: why calling them web components and not just custom elements? And shouldn’t the purpose of custom elements be to avoid JavaScript as much as possible? I can’t see why they were spec’d in this way, what’s the purpose of custom HTML elements if I need to wait javascript to kick in? Give me the possibility to define custom elements in a declarative fashion directly inside HTML with the <template> tag and with styles scoped to that node. Eventually, if one wants, could add some JavaScript to further enhance the custom element. That way we could have expanded the web more and more. Edit: spelling corrections