My software I use to create my webpage - IWEB (on Macbook PRO) doesn't support HTML5 coding that you use for the Facebook LIKEBOX. It is a drag & drop program whereby you can drag a HTML 'snippet' box which you copy & paste the coding into. (I don't write code)
I have had an older HTML code in there & only yesterday I tried to update with the new code & realized it's HTML5.
I have tried various codes from the internet one displays the box correctly within the program.... but when I publish the page nothing can be seen on the website.
Apologies if I am being vague, or not using 'code speak' - I am not a programmer. Regards