https://web.archive.org/web/20160301000015/https://stripe.co...
Most hero sections in mid-2010s did not use CSS and JS animations to this extent. Video playback with an overlay gradient was one technique to animate a hero, but that's not the same level of quality and craft as moving DOM elements. IIRC BDC made these in vanilla (according to some design podcasts).
The Bitcoin page is another example of meticulous design work, remaking Vim in HTML here is crazy.
https://web.archive.org/web/20160301000200/https://stripe.co...
Their open-source page too. They go the extra mile here with JS game of life.
https://web.archive.org/web/20160301000519/https://stripe.co...
Animations are more prevalent today (see pages like https://linear.app), but these Stripe pages were shipped years ago and they still hold up.