.tip {
font:normal 10px Tahoma, Verdana, Arial, Helvetica, sans-serif;
border:solid 1px #666666; 
width:270px; 
padding:1px;
position:absolute;
z-index:100;
visibility:hidden; 
color:#333333; 
top:20px;
left:90px; 
background-color:#ffffcc;
layer-background-color:#ffffcc;
}

#t1 {
background-image:url(images/bg_login.gif);
padding:0px;
border:solid 3px #c7c7c7;
width:236px;
height:130px;
}