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(){
if(elem.next().length > 0)
{InOut( elem.next() );}
else
{InOut( elem.siblings(':first'));}
}
);
}
$(function(){
$('#content li').hide();
InOut( $('#content li:first') );
});