Blue blank overlay on backend dashboard

On the WP Meta SEO dashboard page on the back end of WordPress there are 8 blocks revealing permalinks, meta description, image alt title, Link Titles etc….

There is blank extra blue block overlaying the 8 main blocks. This is either not meant to be there or meant to be revealing information I cannot see. Any thoughts, error links or information would be useful.

I would send you a screen grab but there is no facility to do this and I cannot give you a link because it is behind the login.

thank you