I know that the combined length and width of a forum signature is 325px by 450px and I try to stay mindful of that when editing my signature, so I noticed a surprising issue when using the sCode that allows me to center it, and that's this:

Before Centering

After Centering

This issue means that forum signatures, as it stands, cannot be centered and adhere to the rules. Is this intentional?

Edit: This also made me realize that centering also affects the length. Is that also something that's supposed to happen?