Post configuration - how can I change it?

I have this strange configuration in my forum and search though I might (both here and there!) I can't seem to find out how to change it.

All the posts have this frame around them. Please, how the heck can I get rid of it? I've never seen it on any other XF forum!

 

This comes from a custom style. Have you asked the designer of that style about this?

 

All I know about it is that it's XenForo™ ©2010-2015 XenForo Ltd.
I guess it means it should be updated for a start, yes?

 

That is the link to the xenforo copyright. What I meant is the custom style that you are using. Where did you download it, or purchased it, if it is a paid style?

 

Ah, I see what you mean. Yes we created our own skin - or at least our departing techy did! And we have a mobile skin.
I knew it was the link to XF but I couldn't remove the hyperlink! I just posted it to show which version we are on