[Theme: OneUp] Remove Top Menu Completely

Theme = OneUp – One Page Parallax Retina

I’m completely brainless when it comes to css and haven’t been able to manually strip the top menu [it appears as a black bar] from my website.

I’m Using the OneUp Parallax theme

My site:
http://kwiverkid.x10.mx

I understand the style sheet is important, but there’s no “#navmenu” to add {display:none} to?

Style sheet: http://kwiverkid.x10.mx/stylesheet.html
Header.php: http://kwiverkid.x10.mx/header.html

Is there a solid citizen who can help out this sorry fool?
Thanks in advance,
Kiron