Prova così, a me sembra simile a quello che vuoi ottenere

<HTML>
<HEAD>
<TITLE></TITLE>
</HEAD>
<STYLE>
.menu td {height:10px;}

.menu td {border-top:1px solid #000000;
}

.menu table {border-top:1px solid #000000;
border-bottom:1px solid #000000;
}




</style>


<body>
<table class="menu" border="0" cellPadding="0"
cellSpacing="0" onmouseover="cambiaSuOver(event)"
onmouseout="cambiaSuOut(event)" width="130">
<tr>
<td class="corpog" width="130" id="ignora" bgcolor="#CCFFCC">SOCIETA'</td>
</tr>
<tr>
<td width="130" >Chi Siamo</td>
</tr>
<tr>
<td width="130" >Mission</td>
</tr>
<tr>
<td width="130" >Utility</td>
</tr>
<tr>
<td width="130" >Supporto</td>
</tr>
<tr>
<td width="130" >Votaci</td>
</tr>
<tr>
<td width="130" >Lo Staff</td>
</tr>
<tr>
<td width="130" id="ignora"></td>
</tr>
</table>


</body>
</HTML>