JSFiddle - React, Tailwind, and code Playground

by someprimetime

HTML

<p>
            Ad leggings keytar, brunch id art party dolor labore. Pitchfork yr enim lo-fi before they sold out qui. Tumblr farm-to-table bicycle rights whatever. Anim keffiyeh carles cardigan. Velit seitan mcsweeney's photo booth 3 wolf moon irure. Cosby sweater lomo jean shorts, williamsburg hoodie minim qui you probably haven't heard of them et cardigan trust fund culpa biodiesel wes anderson aesthetic. Nihil tattooed accusamus, cred irony biodiesel keffiyeh artisan ullamco consequat.
            </p>
             <p>
            Ad leggings keytar, brunch id art party dolor labore. Pitchfork yr enim lo-fi before they sold out qui. Tumblr farm-to-table bicycle rights whatever. Anim keffiyeh carles cardigan. Velit seitan mcsweeney's photo booth 3 wolf moon irure. Cosby sweater lomo jean shorts, williamsburg hoodie minim qui you probably haven't heard of them et cardigan trust fund culpa biodiesel wes anderson aesthetic. Nihil tattooed accusamus, cred irony biodiesel keffiyeh artisan ullamco consequat.
            </p>
             <p>
            Ad leggings keytar, brunch id art party dolor labore. Pitchfork yr enim lo-fi before they sold out qui. Tumblr farm-to-table bicycle rights whatever. Anim keffiyeh carles cardigan. Velit seitan mcsweeney's photo booth 3 wolf moon irure. Cosby sweater lomo jean shorts, williamsburg hoodie minim qui you probably haven't heard of them et cardigan trust fund culpa biodiesel wes anderson aesthetic. Nihil tattooed accusamus, cred irony biodiesel keffiyeh artisan ullamco consequat.
            </p>
<hr>


<div id="scrollMeToo">
            <h4 id="fat">@fat</h4>
            <p>
            Ad leggings keytar, brunch id art party dolor labore. Pitchfork yr enim lo-fi before they sold out qui. Tumblr farm-to-table bicycle rights whatever. Anim keffiyeh carles cardigan. Velit seitan mcsweeney's photo booth 3 wolf moon irure. Cosby sweater lomo jean shorts, williamsburg hoodie minim qui you probably haven't heard of them et...

CSS

#scrollMeToo {
    height: 200px;
    width:150px;
    overflow: auto;
    position: relative;
    overflow-y: auto;
}

JavaScript

var curScroll = 0;

$(window).on('mousewheel DOMMouseScroll', 'body', function(e) {
var evt = window.event || e;
var delta = evt.detail ? evt.detail * (-120) : evt.wheelDelta;
var loc = $('#scrollMeToo').scrollTop() + $('#scrollMeToo').innerHeight();
var height = $('#scrollMeToo')[0].scrollHeight - 10;
var height2 = $('#scrollMeToo')[0].scrollHeight - $('#scrollMeToo').innerHeight();
if (delta < 0) {
//scroll down
if (curScroll < height2) {
curScroll += 20;
}
}
else {
//scroll up
if (curScroll > 0) {
curScroll -= 20;
}
}
if (loc >= height && !$('#scrollMeToo').hasClass('appended')) {
var moreContent = '<a href="google.com">a link</a>';
$('#scrollMeToo').append(moreContent);
$('#scrollMeToo').addClass('appended');
console.log('appended');
}
$('#scrollMeToo').scrollTop(curScroll);
return true;
});