ul li { list-style: none; }
 ul, li { margin: 0; padding: 0;}
.tabs,.tabs_act{float:left;width:164px; solid #ccc;height:25px;text-align:center;line-height:25px;display:block;}
.tabs_act{font-weight:bold;color:#FFFFFF; background-color:#5478C4; width:165PX; height:30PX}
.Sliding_tab{width:329px; height:27px;} 
.Sliding_tab li{float:left;border-top:1px solid #ccc;}
.Sliding_tab li.table_li{border-bottom:1px solid #ccc;border-top:0px;width:305px;height:26px;line-height:26px;}
.tablist { clear:both; width:329px;border-top:0px;overflow:hidden;}
.thumbnail{
position: relative;
z-index: 0;
}



.thumbnail:hover{
background-color: transparent;
z-index: 50;
}

.thumbnail span{
position: absolute;
background-color: lightyellow;
padding: 5px;
left: -1000px;
border: 1px dashed gray;
visibility: hidden;
color: black;
text-decoration: none;
}

.thumbnail span img{
border-width: 0;
padding: 2px;
}

.thumbnail:hover span{
visibility: visible;
top: -120px;
left: 0px;
}