Updating the page reference in the source (src) attribute will display the page you specified.
<iframe src="http://www.facebook.com/plugins/likebox.php?href=http%3A%2F%2Fwww.facebook.com%2Fbigfishlaspalmas&width=320&colorscheme=light&show_faces=false&border_color=&stream=true&header=false&height=395"
scrolling="no" frameborder="0" style="border:none; overflow:hidden; width:320px; height:395px;" allowTransparency="true"></iframe>
src=”http://www.facebook.com/plugins/likebox.php?href=http%3A%2F%2Fwww.facebook.com%2Fbigfishbudapest&width=320&colorscheme=light&show_faces=false&border_color=&stream=true&header=false&height=395″
src=”http://www.facebook.com/plugins/likebox.php?href=http%3A%2F%2Fwww.facebook.com%2Fbigfishlaspalmas&width=320&colorscheme=light&show_faces=false&border_color=&stream=true&header=false&height=395″
solved HTML iframe not working when i write src= of facebook