#dropmenudiv{
position:absolute;
border:1px solid black;
border-bottom-width: 0;
font:normal 12px Verdana;
line-height:18px;
z-index:100;
}

#dropmenudiv a{
width: 100%;
display: block;
text-indent: 3px;
border-bottom: 1px solid black;
padding: 1px 0;
text-decoration: none;
font-weight: bold;
}

#dropmenudiv a:hover{ /*hover background color*/
color: #FF6600;
}


<!-- Orange Link Setting -->
a.orangeLink:active { font-family: "tahoma"; font-size: 9pt; color: #337687; text-decoration: none; font-weight:normal }
a.orangeLink:link { font-family: "tahoma"; font-size: 9pt; color: #337687; text-decoration: none; font-weight:normal }
a.orangeLink:visited { font-family: "tahoma"; font-size: 9pt; color: #337687; text-decoration: none; font-weight:normal }
a.orangeLink:hover { font-family: "tahoma"; font-size: 9pt; color: #FF6600; text-decoration: underline; font-weight:normal }