.sub_nav {  
font-family: Arial, Helvetica, sans-serif; 
font-size: 12px;
font-style: normal;
line-height: 12px;
font-weight: bold;
font-variant: normal; 
color: #003399;
text-decoration: none
}

.sub_nav:hover {  
font-family: Arial, Helvetica, sans-serif; 
font-size: 12px;
font-style: normal;
line-height: 12px;
font-weight: bold;
font-variant: normal; 
color: #003399;
text-decoration: underline
}