.nav ul li:hover ul li{
background:#924f9f; 
border-right:none; 
float:left; 
width:160px; 
font-size:16px; 
height:40px; 
line-height:40px; 
text-align:center; 
padding-left:5px;}
.nav ul li:hover ul li:hover{ 
display:inline; background:#670c75; 
float:left; 
width:160px;  
font-size:16px; 
height:40px; 
line-height:40px; 
text-align:center; 
padding-left:5px;}