.Upper{
z-index:999
}
.AutomLeaf{
position:fixed;
opacity:0;
z-index:0
}
.AutomLeaffalling{
position:fixed;
top:0;
left:0;
opacity:0;
z-index:0
}
.inFront{
z-index:100
}
.x1{
width:30px;
height:30px
}
.x2{
width:30px;
height:30px
}
.x3{
width:30px;
height:30px
}
.x4{
width:30px;
height:30px
}