How to change header & footer to full width? [closed]

I’m using the Skeleton theme on this website.

What I’d like to do is have the header & footer to “fill” all horizontal space of the screen, while having the main content staying as is.

I’ve looked at several other threads, but I couldn’t manage to make my way to the solution with the Skeleton theme.

There are many ways to achieve this.

First of all, right now all your content (including the header and footer) are inside a .container with a width of 960px. You cannot get these div’s to be 100% in width when they are inside this container. So what you need to is to change your code by moving the header and footer outside of the container. I’ve created a sample here.

UPDATE!

In header.php after the body tag:

<?php st_above_header();?> 
<?php st_header();?> 
<?php st_below_header();?>
<?php st_navbar(); ?>
    <div id="wrap" class="container"> 

in footer.php right before the body tag:

   </div> <!-- End container -->

   <?php st_before_footer();?>
   <div class="inner-wrap"><?php wp_footer();?></div>
   <span class="border"></span>
   <?php st_after_footer();?>

   </div> <!-- End page container -->

CSS:

#footer {
margin:0;
height:auto;
width:100%;
bottom:0;
/* stick to bottom */
background:#0C2044;
border-top: 7px solid #549290;
}
#header {
margin:0;
width:100%;
border-bottom: 7px solid #DD013F;
}
.inner-wrap, .inner, #megaMenu {
margin: 0 auto;
padding: 0;
position: relative;
width: 960px;
}
#page-container {
position:relative;
/* needed for footer positioning*/
margin:0 auto;
/* center, not in IE5 */
width:100%;
background:#f0f0f0;
height:auto !important;
/* real browsers */
height:100%;
/* IE6: treaded as min-height*/
min-height:100%;
/* real browsers */
}
.border {border-top: 7px solid #DD013F;width:100%; height:7px; float:left;}
#navigation {
margin: 0 0 1.5em;
width: 100%;
background: #549290;  
}
#megaMenu.megaFullWidth {
width:100%;
max-width:960px;
}