Fancy corners for body

Hi there,

I don’t know if this is feasible, but I was hoping to see if anyone knew how I could possibly add fancy corners to the content box on this page.

http://www.theceosecret.com

I’m looking to add corners like this image:

http://marinnarose.com/wp-content/uploads/2014/09/CEO-Secret_Facebook-1024×985.jpg

I’ve heard of adding “Corner images” but I have absolutely no clue how to do that, if anyone could help me out that would be absolutely wonderful!

Thank you!

All the best,
Audrey