JSFiddle - React, Tailwind, and code Playground

HTML

<iframe id="adslot" style="border: 0; width: 180px; height: 150px;" src="http://coinurl.com/get.php?id=19647" height="240" width="320" scrolling="no"></iframe>
<form>
    <input id="btnSubmit" type="submit" disabled="disabled" value="Submit"/>
</form>

CSS

#adslot { float:left ; padding-right:20px }

JavaScript

$(document).ready(function() {
    $('#adslot > a').click(function() {
        $('#btnSubmit').removeAttr('disabled');
    });
});