Yeah, that footer looks surprisingly normal. But I don't see a whole bunch of closing tags just above that part. Why did the font size suddenly revert to normal? Is there something that means "reset everything"?
A single `</h2>` is there. That caused the subsequent `</center>` match to the very first `<center>` tag, popping every nested element from the stack over the course.
"If a problem persists, we recommend that you contact Sewing and Embroidery Warehouse"