This particular question has been asked multiple times, and after careful consideration, I found a solution that closely aligns with my scenario:
Hide content underneath a transparent div while scrolling
The crux of the issue is that the content div is manipulated via JavaScript.
My challenge lies in having a fixed header set at 155px. The header is transparent, and when the text within the content div reaches this header, it should disappear. Due to complex transparency layers and overlay backgrounds on the header, using a masking solution isn't viable. The objective is for the content text to completely vanish upon reaching the header, rather than going behind it.
Scroll down to observe the current behavior. Presently, when scrolling, the text covers the header until the scrollbar surpasses the header position.
Take a look at the JS Fiddle version: https://jsfiddle.net/b5nyohr5/5/