Hi Hantaah, What specific box are you talking about? Also please post your html & css code for the box you are talking about and we’ll be able to help.
I think the border hantaah is referring to is the 1px gray square border in the vicinity of the image on the left of this screenshot. It can occur in any of the boxes. For the record, it’s 248px wide. I can’t find anything that resembles that shape or area. It usually shows up but not always.