A little script I made for my friend Conrad so an image will move upon scrolling.
Just add <script> tags around it. You'll be fine. Like this:
<script>document.addEventListener('DOMContentLoaded', function () {
const image = document.querySelector('.scroll-image');
window.addEventListener('scroll', function() {
let scrolledHeight = window.pageYOffset;
const rate = scrolledHeight * 0.5; // you can adjust this conrad
image.style.transform = `translate(-50%, -50%) translateY(${rate}px)`;
});
});
</script>