JSFiddle - React, Tailwind, and code Playground

HTML

<div class="fadein">
    <p class="me" data-rel="1">1</p>
    <p class="me" data-rel="3">2</p>
    <p class="me" data-rel="2">3</p>
</div>

JavaScript

$( ".me" ).hide();
var waiter = 0;
  $( ".me" ).each(function() {
      waiter = $(this).attr('data-rel')*1000-1000;
    $( this ).delay(waiter).fadeIn(500);
});