JSFiddle - React, Tailwind, and code Playground

HTML

<div id="section" class="clonedSection"> 
    <p>//bunch of textboxes, labels, etc.</p>
</div>
<input type="button" value="Add New Section" id="addSection"/>

JavaScript

$(function(){
    $( "#addSection" ).click(function(){
        var $section = $("#section").clone();  
        $section.attr('id','someUniqueId'+Math.random());
        $('.clonedSection').last().after($section); 
    });
});