#header div.nav { z-index: 10000; margin-right: -10px; width: 550px; height: 27px; float: right;}
#header div.nav ul { list-style: none; padding: 0; margin: 0; float: right;}
#header div.nav ul li { position: relative; overflow: visible; float: left; margin: 0 18px 0 0; text-indent: -9999em;}

/* #header div.nav ul li {overflow: hidden;} */

#header div.nav ul li a{ color:#fff; padding-top: 0; display: block; border: 0; margin-top: 24px; background-position: 0 0 !important; height: 19px;}

#header div.nav ul li.transporte a { background: url("../images/nav_transporte.png") 0 24px no-repeat; }
#header div.nav ul li.elevacion a { background: url("../images/nav_elevacion.png") 0 24px no-repeat; }
#header div.nav ul li.grualbe a { background: url("../images/nav_almacenaje.png") 0 24px no-repeat; }
#header div.nav ul li.contacto a { background: url("../images/nav_contacto.png") 0 24px no-repeat; }

#header div.nav ul li.transporte { width: 100px; height: 27px;}
#header div.nav ul li.elevacion { width: 100px; height: 27px;}
#header div.nav ul li.grualbe { width: 153px; height: 27px;}
#header div.nav ul li.contacto { width: 64px; height: 27px;}

#header div.nav ul li ul{display: none; float: none; position: absolute; top: 43px; left: 0; text-indent: 0; height: auto; background-color: #383D3F; padding: 5px 0 10px 0; -moz-opacity:.90; filter:alpha(opacity=90); opacity:.90;}
#header div.nav ul li.contacto  ul{right: 0; left: auto;}

#header div.nav ul li:hover ul{display: block;}
#header div.nav ul li ul li{text-indent: 0; background: none; padding: 5px 0;}
#header div.nav ul li ul li a{background: none !important; display: block; text-align: left; padding: 5px 10px; white-space: nowrap; margin: 0; height: auto;}

#header div.nav ul li.elevacion a:hover,
#header div.nav ul li.transporte a:hover{background-color: transparent !important; text-decoration: none;}

#header div.nav ul li.elevacion ul li a:hover,
#header div.nav ul li.transporte ul li a:hover,
#header div.nav ul li ul li a:hover{background-color: #666 !important;}

#header div.nav ul li.elevacion a:hover,
#header div.nav ul li.transporte a:hover,
#header div.nav ul li.grualbe a:hover,
#header div.nav ul li.contacto a:hover{background-color: #666; text-decoration: none;}