JSFiddle - React, Tailwind, and code Playground
HTML
<pretty-scroll>
<ul class='commentlist'>
<li>Item 1</li>
<li>Item 2</li>
<li>Item 3</li>
</ul>
</pretty-scroll>
JavaScript
function getEventTarget(e) {
e = e || window.event;
return e.target || e.srcElement;
}
var ul = document.getElementsByClassName('commentlist')[0];
ul.onclick = function(event) {
var target = getEventTarget(event);
alert(target.innerHTML);
};