"Read more..." link to iFrame

Hello,

We have some issues regarding the iframe when we click on the"Read more..." link.

Here are the screen shots joined. Please have a look successively from 1 to 3.

Screenshot 1: We write down some texts and table in the description field.
Screenshot 2: We go the frond end and go into the relative campaign (Blackstone campaign) and click on "Read more..." link
Screenshot 3: the modal frame is not center in the page and also we have a line separating the table (first row and second row).


Thanks for your support,
Regards
Bertrand