codice:
<iframe frameborder="0" scrolling="no" style="border:none; overflow:hidden; width:300px; height:25px;" 
                            src="http://www.facebook.com/plugins/like.php?href=<?=$link?>&amp;layout=standard&amp;show_faces=false&amp;width=100&amp;action=like&amp;font=arial&amp;colorscheme=light" 
                            allowtransparency="true"></iframe>
prova così