JSFiddle - React, Tailwind, and code Playground
by Ronny
HTML
<button>Add</button>
<div class="tableContainer">
<table><tr><td>Hi</td></tr></table>
</div>
CSS
.tableContainer {max-height: 100px; overflow-y: scroll;}
tr {border: 1px solid #777;}
JavaScript
$('button').click(function(){
var container = $('.tableContainer');
container.find('tr:first').clone().appendTo(container.find('table'));
});