Hi,

Normally, in case a custom modification leads a problem, we don't provide support about out it. But if you case is easy to resolve i will be glad to help you out.

But I don't understand what you are trying to say. Please provide me URL to let me see the modification in action.
The screenshot you attached doesn't make any sense to me.

Regards.
Support & Development

Hi,

Disable the "border-rule" you added previously.
instead, use this CSS rule:
By playing with the padding values in the above rule, make sure it won't overlap the corners.

Regards.