i would like to ask you that does the same tips apply on the front??if you do not know what i mean, then i mean the front of an envelope for mailing.
if it does, then please let me know.
You want to use the same tips on the front of an envelope. The same as what?
Perhaps you are asking whether you can the same typography or font, etc. on the envelope as you do in the letter. If so, yes you can.
Otherwise, you're going to have to clarify.