Help me full width the navigation background

Hello, i want to ask how to repeat the navigation bar, in full width because i cant manage to do it.
When i try background-position:center center nothng happens

 

Care to share what you have done so far? Post your current html and css so that we can fix it.

 

This navigation code should be placed outside of your centered content container to allow us to stretch it the full width of the browser window in our CSS.You should use this code :-


#nav {
width: 100%;
float: left;
margin: 0 0 1em 0;
padding: 0;
background-color: #f2f2f2;
border-bottom: 1px solid #ccc; }