.nav_menu{
position: absolute;
visibility: hidden;
border:2px solid #FFF;
border-bottom-width: 0;
font: normal 11px Verdana;
line-height: 18px;
z-index: 100;
background-color: #FFFF99;
width: 180px;
}

.nav_menu a{
width: 100%;
display: block;
text-indent: 3px;
border-bottom: 2px solid #FFF;
padding: 2px 0;
text-decoration: none;
font-weight: normal;
text-indent: 5px;
color: #000000
}

.nav_menu a:visited {
text-decoration: none;
font-weight: normal;
color: #000000
}

.nav_menu a:hover{ /*hover background color*/
background-color: #0066CC;
color: #FFFF33;
}
}