Facebook Like Button - how to disable Comment pop up box?

Question

I\'d like to disable the Comment box that pops up when a user clicks the Facebook Like button ,

I followed the post Facebook Like Button - how to disable Comment pop up

Answer 1

Place the iframe within a div and use overflow hidden with a width and height that hides anything except for the button.

I tried to change the css from within the iframe but that didn't work for me.