body{
    margin: 2.0rem;
}

div {
    padding: 10px;
    opacity: 0.7;
    text-align: center;
}
  
b {
    font-family: sans-serif;
}

#abs1 {
    z-index: 5;
    position: absolute;
    width: 150px;
    height: 350px;
    top: 10px;
    left: 10px;
    border: 1px dashed #900;
    background-color: #fdd;
}

#rel1 {
    z-index: 3;
    height: 100px;
    position: relative;
    top: 30px;
    border: 1px dashed #696;
    background-color: #ffc;
    margin: 0px 50px 0px 50px;
}

#rel2 {
    z-index: 2;
    height: 100px;
    position: relative;
    top: 15px;
    left: 20px;
    border: 1px dashed #696;
    background-color: #cfc;
    margin: 0px 50px 0px 50px;
}

#abs2 {
    z-index: 1;
    position: absolute;
    width: 150px;
    height: 350px;
    top: 10px;
    right: 10px;
    border: 1px dashed #900;
    background-color: #fdd;
}

#sta1 {
    z-index: 8;
    height: 70px;
    border: 1px dashed #996;
    background-color: #ffc;
    margin: 0px 50px 0px 50px;
}