JSFiddle - React, Tailwind, and code Playground

HTML

<input type="radio" name="sitechoice" value="www.websiteone.com">www.websiteone.com
<br />
<input type="radio" name="sitechoice" value="www.secondwebs.com">www.secondwebs.com
<p id="thing2"></p>
<textarea id="new_thing">
    <p id="thing"></p>
</textarea>

CSS

select {
    width: 300px;
}
textarea {
    width: 300px;
    height: 200px
}

JavaScript

$(document).ready(function () {
    $("input").change(function () {
        var website = $(this).val(); // Gets value of input
        alert(website); // For proof something happened
        $("textarea").html('<p id="thing">'+website+'</p>'); // Changes
        $("#thing2").html(website); // Does not change
    });
});