JSFiddle - React, Tailwind, and code Playground
HTML
<ul id="content">
<li>first</li>
<li>second</li>
<li>third</li>
<li>fourth</li>
<li>fifth</li>
<li>sixth</li>
</ul>
JavaScript
function InOut( elem )
{
elem.delay()
.fadeIn()
.delay()
.fadeOut(
function(){ InOut( elem.next() ); }
);
}
$(function(){
$('#content li').hide();
InOut( $('#content li:first') );
});