/* Menu */
#botonera{
position:relative;
padding:0px;
margin:0px;
height:30px;
overflow:hidden;
}

#botonera ul {
padding:0px;
margin:0px;
}

/* Dont apply padding here (offsetWidth will differ in IE)
If you need padding add it to the child anchor */
#botonera ul li {
margin:0px;
float:left;
list-style:none;
}

#botonera ul li a {
text-indent:-500em;
z-index:100;
display:block;
float:left;
height:30px;
position:relative;
overflow:hidden;
}

#menu_home a {
width:58px;
background:url(../img/inicio.gif) no-repeat center;
}

#menu_about a {
width:84px;
background:url(../img/nosotros.gif) no-repeat center;
}

#menu_services a {
width:120px;
background:url(../img/servicios.gif) no-repeat center;
}


#menu_contact a {
width:100px;
background:url(../img/contacto.gif) no-repeat center;
}


/* Seleccionados */
#botonera li.background {
background:url(../img/bg_menu_right.gif) no-repeat top right;
z-index:8;
position:absolute;
visibility:hidden;
}

#botonera .background .left {
background:url(../img/bg_menu.gif) no-repeat top left;
height:30px;
margin-right:9px; /* 7px is the width of the rounded shape */
}