<button id="upor">Upor Jao</button>
button#upor{
/*Must add these style*/
position: fixed;
bottom: 2%;
right: 2%;
opacity: 0;
visibility: hidden;
z-index: 9999;
}
<!-- UPOR JS -->
<script src="upor.js"></script>
<!-- Call The function -->
<script>
const button = document.querySelector("#upor");
// UPOR(Element, Speed, Offset)
UPOR(button,500,100);
</script>