body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    background-color: #f0f0f0;
}

#game-container {
    position: relative;
    width: 400px;
    height: 600px;
    border: 1px solid black;
    background-color: #fff;
}

#score-display {
    position: absolute;
    top: 10px;
    left: 10px;
    font-size: 24px;
    font-weight: bold;
}

#note-container {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 80%;
}

#click-area {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    height: 20%;
    background-color: #ccc;
}

.note {
    position: absolute;
    width: 50px;
    height: 50px;
    background-color: blue;
    border-radius: 50%;
}