#nav ul {margin:0; padding:0;
}

#nav li {
	float: left;
	list-style: none;
	background:#FFF;
}

#nav li a {
	display: block;
	height: 55px;
	background:#fff url(../img/nav.gif) no-repeat 0 0;
	text-indent: -9009px;
}

ul li#link1 a { width: 80px; background-position: 0px 0px; }
ul li#link2 a { width: 86px; background-position: -80px 0px; }
ul li#link3 a { width: 79px; background-position: -166px 0px; }
ul li#link4 a { width: 103px; background-position: -245px 0px; }
ul li#link5 a { width: 77px; background-position: -348px 0px; }
ul li#spacer a { width: 375px; background-position: -425px 0px; }


ul li#link1 a:hover { width: 80px; background-position: 0px -55px; }
ul li#link2 a:hover { width: 86px; background-position: -80px -55px; }
ul li#link3 a:hover { width: 79px; background-position: -166px -55px; }
ul li#link4 a:hover { width: 103px; background-position: -245px -55px; }
ul li#link5 a:hover { width: 77px; background-position: -348px -55px; }


ul li#link1 a:active { width: 80px; background-position: 0px -110px; }
ul li#link2 a:active { width: 86px; background-position: -80px -110px; }
ul li#link3 a:active { width: 79px; background-position: -166px -110px; }
ul li#link4 a:active { width: 103px; background-position: -245px -110px; }
ul li#link5 a:active { width: 77px; background-position: -348px -110px; }


body#about ul li#link1 a { width: 80px; background-position: 0px -110px; }
body#services ul li#link2 a { width: 86px; background-position: -80px -110px; }
body#portfolio ul li#link3 a { width: 79px; background-position: -166px -110px; }
body#case-studies ul li#link4 a { width: 103px; background-position: -245px -110px; }
body#case-studies ul li#link5 a { width: 77px; background-position: -348px -110px; }