I have a large menu that I don't want visible when scrolling down the web page (aside from initially visible at the top). But I would like it to slide (scrub) into view on scroll-up. In my codepen I've reversed the progress so it does scrub, but it takes the whole page to fully reveal (even with duration set).
Can I make this slide down a little quicker, while still "scrubbing" with the mouse?
(scroll to bottom of codepen, then back up to see menu reveal)