/* =viewport */
.document {margin:0 auto; position:relative;}

/* =main structure */
#header{position:relative; float:left; height:100px;}
#footer {position:relative; float:left; height:35px; margin-bottom:20px; padding-top:20px; background:url(../img/bg_hr.gif) repeat-x top left;}

/* =home page */
#banner {position:relative; float:left; height:180px; margin:50px 0 50px 0;}  
#banner #image {float:left; height:180px; background:url(../img/bg_banner.jpg) no-repeat top left;}  
#banner #copy {float:left; height:180px;}  
#intro {position:relative; float:left; margin:40px 0 40px 0;}
#intro #column_left {position:relative; float:left;}
#intro #column_right {position:relative; float:left;}

/* =section page */
#row_1 {position:relative; float:left; margin:50px 0 12px 0;}
#row_2 {position:relative; float:left; margin:0 0 20px 0;}
#row_2 #column_left {position:relative; float:left;}
#row_2 #column_right {position:relative; float:left;}
#content {position:relative; float:left;}

/* =navigation */
#navigation_primary li {position:relative; float:left; margin:0; padding:0; list-style-type:none;}
#navigation_primary {position:absolute; right:0px; top:0; margin:0; padding:0; height:100px; background:url(../img/bg_navigation_primary.jpg) no-repeat top left;}
#navigation_primary li a {position:relative; float:left; height:100px; display:block; text-indent:-9999px; overflow:hidden;}

/* =footer */
#footer {position:relative; float:left; margin:0;}
#footer #copyright {float:left; height:25px; padding:0;}
#footer #echidna {float:left; text-align:right; height:25px; padding:0;}