I am trying to add an image to all lightboxes. But I am getting the error $ is not a function.
Here is the code I am using:
<script>
$( document ).ready(function() {
$(".fancybox-inner").append("<img style='position: absolute; right: 0; bottom: 0;' src='http://juvama.nl/wp-content/uploads/2014/02/stempel1.png'>");
});
</script>
Thank you.