What kind of spider is black with red and white on its back?

A RED BACK!!!

bY THE WAY I WOULDN'T TOUCH IT!!

THEY ARE REALLY DEADLY, ESPECIALLY THE BABY ONES!!!

^ i wouldn't pay attention to that

If the red is on the belly then worry more, it the red is on the back its not a black widow, ive seen a bunch of Spiders with a black body and white stripe, they are jumping spiders, the red button i don't know much about.