It starts as white but turns black when scrolled? Maybe it's just an issue with my device.

Is this on an actual mobile device or is this a mobile preview on desktop? For me, it still doesn't work.

Sorry, it wasn't published. It is now though. It either stays white or black but it doesn't change when scrolled.

I made it so that my header logo inverts when the user scrolls down. This doesn't work on mobile. Instead, it stays inverted. How can I fix this? I am using the Dawn theme and my website is seeninhollywood.com