Moving Navigation Bar CSS

Currently, my navigation bar stays static at the left side of the browser window. I want it to left align with the rest of the site which auto-centers with the browser window (but still keep the nav bar background fully extended to the sides of the browser window). Here is the site:
http://mysportsrehab.com/wordpress/

And here is the current CSS:

/* Nav
---------------------------------------------------------------- */
#nav{
	border-bottom-style: inherit;
    height: 36px;
    text-transform: capitalize;


}
.menu-main-container, .menu{margin:0 auto; width:960px;}
#nav li a .sf-sub-indicator{
	width: 11px;
	height: 32px;
	top: 18px;
	right: 0px;
	text-indent: -9999px;
	overflow: hidden;
	position: absolute;

}
#nav li a:hover .sf-sub-indicator{
}
#nav li li a .sf-sub-indicator {
	top: 12px;
}	
#nav ul {	
	float:left;
	list-style: none;
	margin: 0;
	
}
#nav .sub-menu {
}
#nav .sub-menu .sub-menu{
	background: transparent !important;
}
#nav li {
	float:left;
	list-style: none;
	padding: 0;
}
	

#nav li a {
	display: block;
	font-family: Arial,Helvetica,sans-serif;
    text-transform: uppercase;
	font-size: 13px;
	font-weight: 400;
	line-height: 20px;
	margin: 0;
	padding: 8px 15px 8px 13px;
	position: relative;
	text-decoration: none;
}
#nav .current-menu-item a {
}
#nav li a:hover, #nav li a:active {


}

#nav li li a, #nav li li a:link, #nav li li a:visited {
	font-size:12px;
	line-height: 20px;
	width: 132px;
	margin: 0;
	padding:7px 21px 7px 13px;
	text-transform:capitalize;
	border-bottom:1px solid #0197b2;
	position: relative;
}
	
#nav li li a:hover, #nav li li a:active {
}
	
#nav li ul {
	z-index: 9999;
	position: absolute;
	left: -999em;
	height: auto;
	width: 166px;
	margin: 0;
	padding: 0;
}

#nav li ul ul {
	margin: -35px 0 0 166px;
}

#nav li:hover ul ul, #nav li:hover ul ul ul, #nav li.sfHover ul ul, #nav li.sfHover ul ul ul {
	left: -999em;
}

#nav li:hover ul, #nav li li:hover ul, #nav li li li:hover ul, #nav li.sfHover ul, #nav li li.sfHover ul, #nav li li li.sfHover ul {
	left: auto;
}

#nav li:hover, #nav li.sfHover {
	position: static;
}
	
#nav li a span {
    color:#999;
    display: block;
    font-size: 10px;
    line-height: 14px;
}

Hi,

In your style.css file on line 292 you have the following declaration:

#nav ul {	
  float:left;
  list-style: none;
  margin: 0;
}

change this to:

#nav ul {	
  list-style: none;
  margin: 0 auto;
}

and this will do what you want.

Off Topic:

Please put the appropriate code tags around any code you post. It makes it so much easier to read

That did it! Thanks so much.
Hollie