ถามเรื่อง menu jquery หน่อยครับหาไม่เจอจริงๆ ขอบคุณครับ

ul, li {
 margin: 0; padding: 0;
}

#blob {

 border-right: 1px solid #0059ec;
 border-left: 1px solid #0059ec;
 position: absolute;
 top: 0;
 z-index : 1;
 background: #0b2b61;
 background: -moz-linear-gradient(top, #0b2b61, #1153c0);
 background: -webkit-gradient(linear, left top, left bottom, from(#0b2b61), to(#1153c0));
 -moz-border-radius: 4px;
 -webkit-border-radius: 4px;
 -moz-box-shadow: 2px 3px 10px #011331;
 -webkit-box-shadow: 2px 3px 10px #011331;

}

#nav {
 position: relative;
 background: #292929;
 float: left;
}

#nav li {
 float: left;
 list-style: none;
 border-right: 1px solid #4a4a4a;
 border-left: 1px solid black;

}

#nav li a {
 color: #e3e3e3;
 position: relative;
 z-index: 2;
 float: left;
 font-size: 16px;
 font-family: helvetica, arial, sans-serif;
 text-decoration: none;
 padding: 16px 16px;
}