JSFiddle - React, Tailwind, and code Playground
HTML
<div id="add-foo">click me</div>
JavaScript
var addedFoo = $( '<div class="foo">bar</div>'+
'<div class="foo">bar</div'+
'<div class="foo">bar</div' );
var addFooButton = $( '#add-foo' );
addFooButton.click(function(){
addedFoo.clone().appendTo(this);
});