How it should work? You are scrolling betwen two areas - top and bottom. Content is moving with your scroll up and down. Everything what you need  is on your sight(basket, search bar, cargories, filters on subpage, menu are in the top element, and history of your decissions, where are our shops and fast footer are in the bottom) When you scroll down, content is moving beneath top section (top is visible, and its opacity ~ 85%)

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