In website design, a "mouse stalker" that gently follows the movement of the mouse cursor is a popular effect that provides users with a pleasant operational feel. However, if implemented incorrectly, ...

While CSS animations (Keyframes) are convenient, they are not suitable for responding to user interactions or movements involving complex calculations (such as sine waves). To synchronize with the ...

Why this particular requestAnimationFrame polyfill? Because most (all?) of the other ones have a hidden flaw: they can't handle multiple, simultaneous animations. See a fuller explanation on this blog ...