#menu { 
position:relative; 
float:left;
width: 550px;
height:auto;
margin: 0 0 0 0;
font-family:Helvetica, Verdana, Arial, Helvetica, sans-serif;
font-size:12px;
letter-spacing: -1px;
font-weight:normal;
text-align: left;
border:0px solid #333;
}
#menu ul { 
list-style-type: none;
}

#menu ul li.nivel1 { 
position:relative;
float: left;
margin-right: 1px;
border:0px solid #FF6600;
}

#menu ul li a {
position: relative;
display: block;
width: auto;
height:30px;
margin:0 5px 0 0;
padding:0 27px 0 2px;
text-decoration: none;
line-height:40px;
color: #a0a0a0;
border-bottom:2px solid #fff;
}

#menu ul li a.activado{
display: block;
position: relative;
color: #333;
border-bottom:2px solid #f18235;
}
#menu ul li a:hover {
position: relative;
color: #333;
border-bottom:2px solid #f18235;
}

#menu ul li a.nivel1 {display: block!important;display: none;
position: relative;
}