[CMS] Boxy problem

[Logic]

Just messing about with my CMS I use to use, not opening anything. But, I've noticed on all my pages, everything is boxy like the image below. Instead of having the normal headers (see images). I didn't do anything besides take it from my external hard drive and move it into my wwwroot folder on my server.

Boxy:

Normal:

I've had this problem before, but I forgot how to fix it.