Sticky navigation starting at special point

[alexlii (Alex)]

Thanks @MaxZieb and @h_classen,

I realize it is not easy
Have you checked this before please?

URL:

iPhone

I just suppose this Javascript is by IntersectionObserver, is it possible to do by IntersectionObserver if CSS is not the right way please?

Hype Global Behavior (Custom Behavior Extension)

[HypeGlobalBehavior] This idea got triggered back in the day when trying to explain Custom Behavior as Tweets. The idea stuck with me … Mostly I use Hype these days for Widgets in CMS-Projects, hence I thought I share the concept of a unified communication pipeline across individual widget. So, I recreated LocalConnection from the Flash-days with a little Twitter-twist and named it GlobalBehavior: Hint: The code is an extension. It enables all Hype-Widget loaded on the sa…

Also, I found this resource, and it really look like what I expect:

Stickybits is a lightweight alternative to position: sticky polyfills

Stickybits: an alternative to `position: sticky` polyfills | CSS-Tricks

Really expect your professional comments, thanks in advance.