#container2 {
    background-color: rgb(4, 59, 121); 
    margin: 20px;
    width: 400px;
}

.square {
    width:100px;
    height:100px;
    display: block;
    position:relative;
    /*float: right;*/
}

.square {
    border-radius: 50%;
}

#blockblue {
    background-color: rgb(167, 240, 169);
    /*position: absolute;*/
}

#blockpink {
    background-color: rgb(251, 177, 235);
    /*margin-top: 400px;*/
    
}