Wix Editor: How to pin container only to a section and have it fade when scrolled?

The pinning I see is only for the whole page and I don’t see a way of fading it when next section appears. Any ideas? I thought ChatGPT would provide code, but have wasted plenty of time. Any ideas? Any?

This isn’t possible within the Wix Editor (it will pin to the page, rather than a parent element), although this is possible in Wix Studio.

You can learn more about pinning elements and sections in Studio here.