SOURCE

<div class="box">
    <div class="box1">
        <div class="box2">
            <div class="box3"></div>
        </div>
    </div>
</div>

.box{
    border: solid 1px;
    height:400px;
    width: 400px;
    margin: 50px;
    background-color: #ccccce
}
.box1{
    border: solid 1px;
    width: 298px;
    height: 298px;
    margin: 50px;
    background-color: #fbdeb2
}
.box2{
    border: solid 1px;
    width: 198px;
    height: 198px;
    margin: 50px;
    background-color: #bdd8e3
}
.box3{
    border: solid 1px;
    width: 98px;
    height: 98px;
    margin: 50px;
    border-radius: 100%;
    background-color: #f8ccbf
}