ul#subnav { 
text-align: left; 
margin: 3px 5px 0 5px; 
font: bold 11px arial; 
list-style-type: none;
padding: 1px 3px 2px 3px; /* 3rd number change with respect to padding-top (X) in sub nav */
}

ul#subnav li { 
display: inline;
}

ul#subnav li.selsubnav { 
background-color: #fff; 
}

ul#subnav li.selsubnav a { 
background-color: #666; 
color: #fff; 
position: relative;
top: 1px;
padding-top: 3px; /* change with pad (X) above and below */
}

ul#subnav li a { 
padding: 2px 4px; /* set padding (tab size), 1st number must change with respect to padding-top (X) above */
border: 1px solid #666; 
background-color: #fff; 
color: #666; 
margin-right: 0px; 
text-decoration: none;  
border-bottom: none;
}

ul#subnav a:hover { 
background: #666; 
color: #fff;
}