#d1{
position:absolute;
width:300px;
height:300px;
visibility:hidden;
color:#fff;
background:#555;
}
#d2{
position:absolute;
width:300px;
height:300px;
visibility:hidden;
color:#fff;
background:#777;
}
#d3{
position:absolute;
width:150px;
height:150px;
visibility:hidden;
color:#fff;
background:#999;
}
DHTML方法基础-对DIV的一些简单控制BY51jszdzhuo
d1