JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

<body>
<div class="content">
<ul class="pricepart">
<li><input type="text" />
<span class="add">ADD+</span></li>
</ul>
</div>
<div class="content">
<ul class="pricepart">
<li> <input type="text" />
<span class="add">ADD+</span></li>
</ul>
</div>
<script>
$(".add").click(function () {
  $(this).closest('.content').append('<ul class="pricepart"><li><input type="text"/><span class="remove">Remove -</span></li></ul>');
});
</script>

<script>
$("body").on("click", ".remove", function () {
  $(this).closest("ul").remove();
});
</script>

</body>