Navigation bar image

[Numb47]

So I'm trying to add a custom image to my navigation bar, but it doesn't extend to the side.

How do i make it extend to each side all the way?

i have this simple code for the header and navigation bar image;

#ipsLayout_header > header {
	background: url({resource="header.png" app="core" location="admin"});
  	background-size: 100% 100%;
}

.ipsNavBar_primary {
  	background: url({resource="menu bar.png" app="core" location="admin"});
  	background-size: 100% 100%;
}

and it looks like that;

As you can see, it doesnt extend all the to each sides. And it needs to so it fits with the header image.

Thanks

[Numb47]

Also, how do i move the buttons of the navigation bar to the middle? thx