Video Embeds Are Now Markup Friendly

Hi,

In the video embed code, I keep getting the error:

The frameborder attribute on the iframe element is obsolete. Use CSS instead.

One example can be found here where you can simply plug the url into the validator. http://onlinediamondbuyingguide.com/education/

I believe this is some lines in the backend of the coding that’s doing this. Could you help?

paul