Vertical menu outside of wrapper

Hi all, I have a wrap width of 1024, and a menu that currently sits justified to the right side of the screen. I want to move it to be, say, 35px from the right edge of the wrapper. Here is the menu code in style.css:

nav{
	position: fixed;
	top: 0;
	right: -35px;
	width: 200px;

}
nav p#menu-click-show{
	display: none;
}
nav ul{
	padding: 10px;
	-webkit-box-sizing: border-box;
	-moz-box-sizing: border-box;
	box-sizing: border-box;
	border-bottom-right-radius: 5px;
	border-bottom-left-radius: 5px;
	height: 100%;
	background:rgba(0,0,0,0.5);
	-webkit-box-sizing: border-box;
	   -moz-box-sizing: border-box;
	        box-sizing: border-box;
}
nav ul li{
	padding:3px 0;
}
nav ul li a{
	text-decoration: none;
	color: #fff;
	font-size: 12px;
}
nav ul li a:hover{
	text-decoration: underline;
}

At the ‘nav’ section at the top, if I put that -35 value at, say, -135, it moves it almost off screen, which tells me that I’m somewhat in the right place for what I want to do. However, what is that relative to, or is that absolute to something?

I’m thinking I would still have the position as fixed, but somehow relative to the edge of the main container wrapper.

I have searched and haven’t found anything with quite this issue. If you need clarifications I’m online most of the time. 🙂

TIA,

Brian