JSFiddle - React, Tailwind, and code Playground

HTML

<button id="target" type="button">+</button>
<div><input type="text"><label>link1</label></div>

CSS

#target {display: block;}
div {display: block;}

JavaScript

$('#target').click(function() {
    $('body').append("<div><input type='text'><label>link<span id='output'>1</span></label></div>");
    var num = parseInt($.trim($('#output').html()));
    $('#output').html(++num)
});