JSFiddle - React, Tailwind, and code Playground

HTML

<pre class="indent"></pre>
<pre class="indent"></pre>
<pre class="indent"></pre>
<pre class="indent"></pre>
<pre class="indent"></pre>
<pre class="indent"></pre>
<pre class="indent"></pre>
<pre class="indent"></pre>
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<pre class="indent"></pre>

JavaScript

$(function(){    
    $.each(".indent", function(index){
       alert(index); 
    });    
});