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?