My references are Feed Music and Crypton Trading

I want to emulate their functionality of changing things as you scroll down. Feed plays frames of an animation (under the "Tech Spotlight" section).

My details pages may/may not have text that scrolls down, but regardless, the image to the left moves along frames of whatever animation I am highlighting as you scroll.

Crypton has similarly moving pieces, but keeps a solid sidebar for text which I was loving. I hope to keep the text over an unmoving solid color while the image to the left will alter along with scrolling.