Woocommerce (Flatsome) - Adding Button on Single Product Page

I would like to add a button on my single product page (something like in the attached file). I have added the following lines of code but nothing happens:
I try putting this code into my site's footer.php file but nothing happens:

<script type="text/javascript">
jQuery(function($) {
$('.quantity.buttons_added':wink:.after('Buying guide':wink:;
});
</script>

Can anyone help?