I’ve actually used two different styles for the drop-downs. Neither displays the drop-downs. One is the #access classes. The other is the #cssmenu classes. Both were obtained from 3rd parties. Here they are:
/*
First we prepare the navigation menu bar
`
#access {
background: #4572BF; /* Show a solid color for older browsers */
background: -moz-linear-gradient(#4572BF, #6187C7);
background: -o-linear-gradient(#4572BF, #6187C7);
background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#4572BF), to(#6187C7)); /* older webkit syntax */
background: -webkit-linear-gradient(#4572BF, #6187C7);
-webkit-box-shadow: rgba(0, 0, 0, 0.4) 0px 1px 2px;
-moz-box-shadow: rgba(0, 0, 0, 0.4) 0px 1px 2px;
box-shadow: rgba(0, 0, 0, 0.4) 0px 1px 2px;
clear: both;
display: block;
float: left;
margin: 0 auto 0px;
width: 100%;
}
/*
Now we style the unordered list, hover effect, and sub menus
*/
#access ul {
font-size: 13px;
list-style: none;
margin: 0 0 0 -0.8125em;
padding-left: 0;
}
#access li {
float: left;
position: relative;
}
#access a {
color: #eee;
display: block;
line-height: 3.333em;
padding: 0 1.2125em;
text-decoration: none;
}
#access ul ul {
-moz-box-shadow: 0 3px 3px rgba(0,0,0,0.2);
-webkit-box-shadow: 0 3px 3px rgba(0,0,0,0.2);
box-shadow: 0 3px 3px rgba(0,0,0,0.2);
display: none;
float: left;
margin: 0;
position: absolute;
top: 3.333em;
left: 0;
width: 188px;
z-index: 99999;
}
#access ul ul ul {
left: 100%;
top: 0;
}
#access ul ul a {
background: #f9f9f9;
border-bottom: 1px dotted #ddd;
color: #444;
font-size: 13px;
font-weight: normal;
height: auto;
line-height: 1.4em;
padding: 10px 10px;
width: 168px;
}
#access li:hover > a,
#access ul ul :hover > a,
#access a:focus {
background: #efefef;
}
#access li:hover > a,
#access a:focus {
background: #f9f9f9; /* Show a solid color for older browsers */
background: -moz-linear-gradient(#f9f9f9, #e5e5e5);
background: -o-linear-gradient(#f9f9f9, #e5e5e5);
background: -webkit-gradient(linear, 0% 0%, 0% 100%, from(#f9f9f9), to(#e5e5e5)); /* Older webkit syntax */
background: -webkit-linear-gradient(#f9f9f9, #e5e5e5);
color: #373737;
}
#access ul li:hover > ul {
display: block;
}
/*
Styling the currently rendered page
*/
#access .current-menu-item > a,
#access .current-menu-ancestor > a,
#access .current_page_item > a,
#access .current_page_ancestor > a {
font-weight: bold;
}
#cssmenu ul { margin: 0; padding: 0;}
#cssmenu li { margin: 0; padding: 0;}
#cssmenu a { margin: 0; padding: 0;}
#cssmenu ul {list-style: none;}
#cssmenu a {text-decoration: none;}
#cssmenu {height: 25px; background-color: #555555; box-shadow: 0px 2px 3px rgba(0,0,0,.4);}
#cssmenu > ul > li {
float: left;
margin-left: 15px;
position: relative;
}
#cssmenu > ul > li > a {
color: rgb(160,160,160);
font-family: Verdana, ‘Lucida Grande’;
font-size: 15px;
line-height: 25px;
padding: 15px 20px;
-webkit-transition: color .15s;
-moz-transition: color .15s;
-o-transition: color .15s;
transition: color .15s;
}
#cssmenu > ul > li > a:hover {color: rgb(250,250,250); }
#cssmenu > ul > li > ul {
opacity: 0;
visibility: hidden;
padding: 16px 0 20px 0;
background-color: rgb(250,250,250);
text-align: left;
position: absolute;
top: 55px;
left: 50%;
margin-left: -90px;
width: 180px;
-webkit-transition: all .3s .1s;
-moz-transition: all .3s .1s;
-o-transition: all .3s .1s;
transition: all .3s .1s;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
-webkit-box-shadow: 0px 1px 3px rgba(0,0,0,.4);
-moz-box-shadow: 0px 1px 3px rgba(0,0,0,.4);
box-shadow: 0px 1px 3px rgba(0,0,0,.4);
}
#cssmenu > ul > li:hover > ul {
opacity: 1;
top: 65px;
visibility: visible;
}
#cssmenu > ul > li > ul:before{
content: ”;
display: block;
border-color: transparent transparent rgb(250,250,250) transparent;
border-style: solid;
border-width: 10px;
position: absolute;
top: -20px;
left: 50%;
margin-left: -10px;
}
#cssmenu > ul ul > li { position: relative;}
#cssmenu ul ul a{
color: rgb(50,50,50);
font-family: Verdana, ‘Lucida Grande’;
font-size: 13px;
background-color: rgb(250,250,250);
padding: 5px 8px 7px 16px;
display: block;
-webkit-transition: background-color .1s;
-moz-transition: background-color .1s;
-o-transition: background-color .1s;
transition: background-color .1s;
}
#cssmenu ul ul a:hover {background-color: rgb(240,240,240);}
#cssmenu ul ul ul {
visibility: hidden;
opacity: 0;
position: absolute;
top: -16px;
left: 206px;
padding: 16px 0 20px 0;
background-color: rgb(250,250,250);
text-align: left;
width: 160px;
-webkit-transition: all .3s;
-moz-transition: all .3s;
-o-transition: all .3s;
transition: all .3s;
-webkit-border-radius: 5px;
-moz-border-radius: 5px;
border-radius: 5px;
-webkit-box-shadow: 0px 1px 3px rgba(0,0,0,.4);
-moz-box-shadow: 0px 1px 3px rgba(0,0,0,.4);
box-shadow: 0px 1px 3px rgba(0,0,0,.4);
}
#cssmenu ul ul > li:hover > ul { opacity: 1; left: 196px; visibility: visible;}
#cssmenu ul ul a:hover{
background-color: rgb(205,44,36);
color: rgb(240,240,240);
`