JSFiddle - React, Tailwind, and code Playground
HTML
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.2.0/jquery.min.js"></script>
<div class="wrapper">
<button class="add">Add Row</button>
</div>
JavaScript
var index = 1;
$('.add').click(function(e) {
var $el = $('<div>new row: ' + index++ +'</div>').hide();
$('.wrapper').append($el);
$el.fadeIn();
});