JSFiddle - React, Tailwind, and code Playground
HTML
<div id="testPage" data-role="page">
<div data-role="content">
<fieldset data-role="controlgroup">
<legend>Radio buttons, vertical controlgroup:</legend>
<input type="radio" name="radio-choice-1" id="radio-choice-1" value="choice-1" checked="checked">
<label for="radio-choice-1">Cat</label>
<input type="radio" name="radio-choice-1" id="radio-choice-2" value="choice-2">
<label for="radio-choice-2">Dog</label>
<input type="radio" name="radio-choice-1" id="radio-choice-3" value="choice-3">
<label for="radio-choice-3">Hamster</label>
<input type="radio" name="radio-choice-1" id="radio-choice-4" value="choice-4">
<label for="radio-choice-4">Lizard</label>
</fieldset>
</div>
</div>
JavaScript
$('<input type="radio" name="radio-choice-5" id="radio-choice-5"><label for="radio-choice-5">Horse</label>')
.appendTo("fieldset");
$("fieldset").trigger('create');