CSS Navigation Bar Stick To Top?

How do i get a navigation bar to stick to the top of the page without starting a few pixels below the top of the page?

here's my css code

 

I believe the default is usually a few pixels, so try setting body's top margin to 0px.

body{
margin-top:0px;
}

 

thanks mate it worked, to center the layout and everything we use the margin:0 auto;

right?

 

yes, that is to center it in firefox.
Check if it works in IE, IE sometimes need this to make it works text-align: center;