Coloque o código abaixo entre as tags < head > e < / head > do seu código fonte:

/***************** MENU NAVI *****************/
#nav{
color:#A8DEE7;
display: block;
padding-bottom: 1px;
font-weight:bold;
text-decoration:none;
line-height:15px;
vertical-align:middle;
width: 100%;
font-size:9px;
font-family: Tahoma;
margin-bottom: 2px;
background-color:#E3FBFF;
border-top:1px solid #E3FBFF;
border-left:1px solid #E3FBFF;
border-right:1px solid #E3FBFF;
border-bottom:1px solid #E3FBFF;
padding:0px;}

#nav:hover{
color:#FFBADD;
display: block;
padding-bottom: 1px;
font-weight:bold;
text-decoration:none;
line-height:15px;
vertical-align:middle;
width: 100%;
font-size:9px;
font-family: Tahoma;
margin-bottom: 2px;
background-color:#FFEFF7;
border-top:1px solid #FFEFF7;
border-left:1px solid #FFEFF7;
border-right:1px solid #FFEFF7;
border-bottom:1px solid #FFEFF7;
padding:0px;}

#nav2{
color:#88E2A6;
display: block;
padding-bottom: 1px;
font-weight:bold;
text-decoration:none;
line-height:15px;
vertical-align:middle;
width: 100%;
font-size:9px;
font-family: Tahoma;
margin-bottom: 2px;
background-color:#E7FFF1;
border-top:1px solid #E7FFF1;
border-left:1px solid #E7FFF1;
border-right:1px solid #E7FFF1;
border-bottom:1px solid #E7FFF1;
padding:0px;}

#nav2:hover{
color:#FFBADD;
display: block;
padding-bottom: 1px;
font-weight:bold;
text-decoration:none;
line-height:15px;
vertical-align:middle;
width: 100%;
font-size:9px;
font-family: Tahoma;
margin-bottom: 2px;
background-color:#FFEFF7;
border-top:1px solid #FFEFF7;
border-left:1px solid #FFEFF7;
border-right:1px solid #FFEFF7;
border-bottom:1px solid #FFEFF7;
padding:0px;}

#nav3{
color:#FFADD6;
display: block;
padding-bottom: 1px;
font-weight:bold;
text-decoration:none;
line-height:15px;
vertical-align:middle;
width: 100%;
margin-bottom: 2px;
font-size:9px;
font-family: Tahoma;
background-color:#FFEFF7;
border-top:1px solid #FFEFF7;
border-left:1px solid #FFEFF7;
border-right:1px solid #FFEFF7;
border-bottom:1px solid #FFEFF7;
padding:0px;}

#nav3:hover{
color:#DFA1FF;
display: block;
padding-bottom: 1px;
font-weight:bold;
text-decoration:none;
line-height:15px;
vertical-align:middle;
width: 100%;
margin-bottom: 2px;
font-size:9px;
font-family: Tahoma;
background-color:#F9ECFF;
border-top:1px solid #F9ECFF;
border-left:1px solid #F9ECFF;
border-right:1px solid #F9ECFF;
border-bottom:1px solid #F9ECFF;
padding:0px;} 

*Altere as cores de acordo com sua preferência
-> color – cor da fonte.
-> font-family tipo de fonte.
-> font-size – tamanho da fonte.
-> background-color – cor do fundo.

Agora coloque o código abaixo onde você queira que o menu apareça:

<div id="nav"><a title="descricao do link" href="http://endereco">Pagina a</a> - bla bla bla</div>
<div id="nav2"><a title="descricao do link" href="http://endereco">Pagina b</a> - bla bla bla</div>
<div id="nav3"><a title="descricao do link" href="http://enderecoi">Pagina c</a> - bla bla bla</div>