on Mobile, show/reveal an item in a sticky panel when dynamic panel scrolls past 200 px.

Klaus Heesch shared this question 3 years ago

I am creating a mobile web prototype that has a sticky panel at its top.

I want to SHOW a logo int hat sticky panel once the user scrolls to about 200 pixels in the dynamic panel below it. How do I make the logo appear in the sticky panel at the top once scroll gets past the 200 pixel point?