JSFiddle - React, Tailwind, and code Playground

CSS

html {
    overflow: scroll;
}

JavaScript

$div = "<div style=\"border:1px solid black;\">I'm a div with some<br>content<br><br>foo<br>bar<br>..........</div>";
setInterval(function() {
   $("html").append($div)
   pageScroll(); 
}, 1000);

function pageScroll() {
    window.scrollBy(0,$("div").last().position().top);
    scrolldelay = setTimeout(pageScroll(),10);
}