Keyframes: Delivering scalable, high-quality animations to mobile clientsKeyframes: Delivering scalable, high-quality animations to mobile clients Reactions are a way for people to more easily express themselves on Facebook. As we began building the feature, we wanted to provide a high-quality experience that felt fun at every step, including how the Reactions were displayed, how they moved on the screen when people interacted with them, and how they were dismissed. We
