JSFiddle - React, Tailwind, and code Playground
HTML
<ul>
<li>a</li>
<li>b</li>
<li>c</li>
<li>d</li>
<li>e</li>
</ul>
JavaScript
var lis = $("li");
for (var i = 0; i < lis.length; i++) {
$(lis[i]).delay(i*400).animate({opacity: 0}, 1000);
}