.tip {font:10px/12px Arial,Helvetica,sans-serif; border:solid 1px #666666; width:100px; 
      padding:1px; position:absolute; z-index:100; visibility:hidden; color:#333333;
      top:20px; left:10px; background-color:#ffffcc; layer-background-color:#ffffcc;}
#t1 {width:100px;position:relative;}
#t2 {width:100px;}
#t3 {width:100px;}