#nav {
  margin-top: 10px;
  font: 12px arial, sans-serif;
  vertical-align:text-top;
}
#nav li {
  list-style: none;
  float: left;
  background: left center url(images/arr.gif) no-repeat;
  padding-left: 15px;
  padding-right: 20px;
}
#nav a {
  color: #000;
  text-decoration: none;
  font-weight: bold;
}
#nav a:hover {
  color: #FFA405;
}

.box {
background-color: #F4F4F4;
border: 1px solid #CCC;
width: 500px;
padding: 5px;
display:none;
position:absolute;
}

.pnl{
font-weight: bold;
background-color: #eeeeee;
padding: 5px;
cursor: pointer;
border: solid 1px #c0c0c0
}