It's "you are welcome." It could also be written "you're welcome" which often sounds as though they are saying "your."
you're welcome.
"You're" is short for "You Are" ... so "you're welcome" is quite correct "Your" is possessive term ... "it is your bike" ... not "your welcome" .
you are welcome [your'e welcome ]
to answer your question its meet the browns not welcome to the browns.