https://www.mgp.fr/modules/internet-templates/javascript/composants/scrollReveal.js

1export default function scrollReveal() {
2    const revealPoint = 100
3    const revealElement = document.querySelectorAll(".scrollreveal")
4    for (var i = 0; i < revealElement.length; ++i) {
5        var windowHeight = window.innerHeight
6        var revealTop = revealElement[i].getBoundingClientRect().top
7        if (revealTop < windowHeight - revealPoint) {
8            revealElement[i].classList.add("isreveal")
9            revealElement[i].classList.remove("scrollreveal")
10        } else {
11            revealElement[i].classList.remove("isreveal")
12            revealElement[i].classList.add("scrollreveal")
13        }
14    }
15}