Parallax Mouse function with mouseMove for React

parallaxMouse.js

// The node with the mouseOver event has the background image we are moving

const calcParallax = e => {
    const speed = -0.009
    const distX = e.clientX / 2
    const distY = e.clientY

    e.currentTarget.style.backgroundPositionX = `calc(50% + ${(distX * speed)}px)`
    e.currentTarget.style.backgroundPositionY = `calc(50% + ${(distY * speed)}px)`
  }