#f_1 {
position: absolute;
top: 88px;
left: 181px;
z-index:7;
}
#f_2 {
position: absolute;
top: 88px;
left: 344px;
z-index:7;
} 
#f_3 {
position: absolute;
top: 88px;
left: 493px;
z-index:7;
}
#f_4 {
position: absolute;
top: 263px;
left: 181px;
z-index:7;
}
#f_5 {
position: absolute;
top: 263px;
left: 490px;
z-index:7;
}
#f_6 {
position: absolute;
top: 263px;
left: 651px;
z-index:7;
}
#f_7 {
position: absolute;
top: 422px;
left: 181px;
z-index:7;
}
#f_8 {
position: absolute;
top: 422px;
left: 344px;
z-index:7;
}
#f_9 {
position: absolute;
top: 422px;
left: 493px;
z-index:7;
}