title: Google/StackExchange Navigation Bar
body: <p>I'm looking to make a navigation bar like that of Google (their new one) or StackExchange, where it's immediately at the top. It doesn't have to be persistent, and all I need on it are links, but how can I make it so that it stays immediately at the top like that? More importantly, how can I make it so that it always fills up the entire width of the screen (rather than having a defined width)?</p>
  
  <p>Currently I have a simple inline list, but the width is defined.</p>
  
  <p>I'd be willing to use new HTML5 techniques as well as CSS to any extent to do so.</p>