Shortmail widget: you are going to use your own link, so hide the button

hide-button.html

<script src="http://shortmail.com/widgets/compose-widget.js?v=1"></script>
<script>
  Shortmail.ComposeWidget({
    screenName: '[email protected]'
  });
  $(document).ready(function() {
    // hide the button
    $('button.shortmail-me').hide();
  });
</script>

<a href="mailto:[email protected]" onclick="return Shortmail.showWindow();" title="Shortmail Me!">Send a Shortmail to jonathanjulian</a>