.blacknote {
    height: 450px;
    width: 50px;
    background-color: black;
    position: absolute;
}
.whitenote {
    height: 600px;
    width: 70px;
    border: solid 1px black;
    position: relative;
    float: left;
}

#container {
    height: 600px;
    width: 1526px;
    border: solid 3px black;
    margin-left: auto;
    margin-right: auto;
}