Hi guys~ I am working on making a pet profile from scratch for the first time. Things are going... as expected... LOL I have been referencing the Subeta CSS Compendium from Hongske and it has been tremendously helpful.

But I keep running into a problem. There is a faint grey outline around what I believe is the element, as shown below:

Could someone help me figure out what this is and how to remove it? I have tried changing the border and the outline propertes but it doesn't seem to work.

Thank you in advance. :)