JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://ajax.microsoft.com/ajax/jquery.validate/1.7/jquery.validate.js"></script>
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">
 <div id="wrapper">
  <div class="section" id="section-1">Section 1</div>
  <div class="section" id="section-2">Section 2</div>
  <div class="section" id="section-3">Section 3</div>
  <div class="section" id="section-4">Section 4</div>
 </div>

CSS

.section {
    width: 100px;
    height: 100px;
    border: 2px dashed orange;
    background: yellow;
    opacity: 0;
}

JavaScript

$(function(){
     chainAnim('.section',800,'1');
});

function chainAnim(e,s,o) {
        var $fade = $(e);
        var code = function() {console.log('Done.');};
        $fade.each(function( i ){
            $(this).delay(i * s).fadeTo(s,o,code);
        });
}