[Stickman]

The two bits I mentioned would look like this in your stylesheet, so you wouldn't need the same information in your html:

body {
background:#fff;
margin:0;
padding:0;
}

#nav {
position:absolute;
width:100%;
height:auto;
bottom:0;
z-index:2;
}

If you want to do some reading/learning:
http://www.htmlhelp.com/reference/css/
http://www.mako4css.com/
http://www.blooberry.com/indexdot/css/propindex/all.htm