Remove responsive menu

Dear all,

Trying to set up my website. Quick question. The menu of my site looks fine: http://zizuwear.com/wp/

However, when I view it on a mobile phone or any other device with a screenwidth below 664 pixels, a small responsive menu pops up. I’ve been trying hard to get rid of it, but to no avail so far.

I have found some topics on this forum dealing with this matter, but haven’t been able to figure it out myself yet unfortunately.

Your help would be greatly appreciated..

Warm regards,

Wouter