toxi, 
Animating SVG via https://thi.ng/hiccup-svg and the new https://thi.ng/ramp v3 with its multi-channel timelines... sooo much easier (and easier to control) than using CSS!
https://demo.thi.ng/umbrella/ramp-scroll-svg/
(I manually set the document height to 2000px, scrolling might be weird/nonfunctional on large screens/window sizes)
#ThingUmbrella #SVG #Animation #Timeline #ScrollDrivenAnimation #UI #TypeScript #JavaScript