JSFiddle - React, Tailwind, and code Playground
HTML
<div class="add_new_content">
<div class="add_new_box">ADD NEW</div>
<input type="text" value="" />
</div>
JavaScript
$(document).ready(function(){
$(".add_new_box").live('click',function(){
$('.add_new_content:last').clone().appendTo('.add_new_content:last');
alert("1");
});
});