In order to have things visible, the white backing needs to be able to cover what's behind it. Things like thin fonts can have the white ink bleed past the intentional area since they are so small and this can create a lower quality looking card. Having thin content can also make it hard to read when being held at certain angles. The way to get around this is to use thicker fonts or increase the size of the content. These are things we catch and try to fix before they go into print. Your order will be placed on hold if we find major unavoidable design issues.