Hi! I'm trying to achieve an effect similar to https://gallery.delivery/ or https://shadow-brand.com/, where there is horizontal scrolling but the sections stick to the left side of the page so that the next section overlaps it.     Here is my pen:   I've achieved the horizontal scrolling effect looking at other threads here, but not sure how to approach the stickiness aspect-- I've tried applying a class that would fix the position of the panels but that removes t