<!-- Like button -->
<script>
    $(".fa-heart").click(function(){
        if ($(this).attr("red") == 'true'){
            $(this).animate({color:"#808080"});
            $(this).attr("red", false);
        } else {
            $(this).animate({color:"#ff0000"});
            $(this).attr("red", true);
        }
    });
</script>

<!-- fancybox -->
<script src="https://cdn.jsdelivr.net/npm/@fancyapps/ui/dist/fancybox.umd.js"></script>