main{
    position: absolute;
    width: 400px;
    height: 400px;
    border-radius: 50px;
    left: 500px;
    top: 200px;
    background-color:yellow;
    border-style: solid;
    border-width: 8px;
    border-color:red;
}

header{
    position: relative;
    top: 100px;
    left:70px;
    width: 100px;
    height: 100px;
    border-radius: 50px;
    background-color:blue;
}

section{
    position: relative;
    top: 0px;
    left:230px;
    width: 100px;
    height: 100px;
    border-radius: 50px;
    background-color:blue;
}

aside{
    position: relative;
    top: 60px;
    left:70px;
    width: 250px;
    height: 60px;
    background-color:red;
}