Resono
Grab the card — throw it and let go. It springs back to home and settles.
Spring physics
One integrator drives it all. Tune it, then throw the card.
Haptic bounceKnob overshoots, then settles
Adds physics-based movement with bounce and settling.
Natural, polished, app-like
Best use: Menus, modals, draggable UI
One integrator drives it all. Tune it, then throw the card.
Technique: a per-frame spring integrator — F = −k·x − c·v (stiffness / damping) stepped with semi-implicit Euler in requestAnimationFrame, driving CSS transform. Drag throws it; release springs it home.