/* el menú es una lista */

#nav {	
	height: 50px; 
	width: 640px;
	list-style-type: none;
	margin: 0 auto; /* si queremos centrarlo */
	padding: 0;
	border-radius: 5px;
	background: #009BDB;
	background: -moz-linear-gradient(#009BDB,#0066CC);
	background: -webkit-linear-gradient(#009BDB,#0066CC);
	background: -o-linear-gradient(#009BDB,#0066CC);
	background: -ms-linear-gradient(#009BDB,#0066CC);
	background: linear-gradient(#009BDB,#0066CC);
	-pie-background: linear-gradient(#009BDB,#0066CC);
	behavior: url(/pie/PIE.htc);
	
}
#nav li { /* cada item de esa lista */
	display: block;
	float: left; /* la lista se ve horizontal */
	height: 90%;
	list-style: none;
	margin: 0;
	padding: 5px 0 0 0;
	position: relative;
}

/* las definiciones del Nivel Principal */
#nav a {
	border-left: 1px solid #000;
    border-right: 1px solid #666;
    color: #CCC;
    display: block;
    font-family: Tahoma;
    font-size: 13px;
    font-weight: bold;
    line-height: 28px;
    padding: 0 20px;
    margin: 6px 0;
    text-decoration: none;
    /* animamos el cambio de color de los textos */
    -webkit-transition: color .2s ease-in-out;
    -moz-transition: color .2s ease-in-out;
    -o-transition: color .2s ease-in-out;
    -ms-transition: color .2s ease-in-out;
    transition: color .2s ease-in-out;
}

#nav li:first-child a { border-left: none; }
#nav li:last-child a{ border-right: none; }
  /* efecto hover cambia el color */

#nav a:hover {
	color: #FFF;
}

/* efecto hover en el Nivel Principal */
#nav .current a, #nav li:hover > a {
	color: #ffffff;
}

/* los subniveles */
#nav ul li:hover a, #nav li:hover li a {
	background: none;
	border: none;
	color: #ccc;
}
#nav ul a:hover {
	color: #fff !important;
}

/* el efecto de desplegar */
#nav li:hover > ul {
	display: block;
}

/* las definiciones de los submenues */
#nav ul {
	background: #009BDB;
    background: -moz-linear-gradient(#009BDB,#0066CC);
    background: -webkit-linear-gradient(#009BDB,#0066CC);
    background: -o-linear-gradient(#009BDB,#0066CC);
    background: -ms-linear-gradient(#009BDB,#0066CC);
    background: linear-gradient(#009BDB,#0066CC);	
	display: none;
	left: 0;
	margin: 0;
	padding: 0;
	position: absolute;
	top: 40px;
  	width: 185px;
 	-webkit-border-radius: 0 0 5px 5px;
	-moz-border-radius: 0 0 5px 5px;
	border-radius: 0 5px 5px 5px;
    /* animamos su visibildiad */
    -moz-transition: opacity .25s ease .1s;
    -webkit-transition: opacity .25s ease .1s;
    -o-transition: opacity .25s ease .1s;
    -ms-transition: opacity .25s ease .1s;
    transition: opacity .25s ease .1s;
}
#nav ul li {
	float: none;
	margin: 0;
	padding: 0;
}
#nav ul a {
	font-weight: normal;
}

/* las definiciones de los submenues internos */
#nav ul ul {
	left: 181px;
	top: -3px;
}

/* definiciones generales */
#nav:after {
	clear: both;
	content: ".";
	display: block;
	height: 0;
	line-height: 0;
 	visibility: hidden;
}
#nav { display: inline-block; } 
html[xmlns] #nav { display: block; }
* html #nav { height: 1%; }