How do use my own header and footer?

[wii]

I converted my old punbb forum to xenforo, in punbb there are template files I can edit, so I can have my own header and footer with some css, is there anyway to do this in xenforo, so that the entire forum is within my design? I hope you understand.

In vbulletin I did by adding some html code and a css include to the headinclude template and footer template.

 

[CyberAP]

Create a child style from the default and play with it in Style Properties!

 

[wii]

Ok, I think I got it.