body{
    font-family: Helvetica, sans-serif;
    color: #000;
    font-size: 16px;
}

canvas{
    max-height: 90vh;
}

#grandtotalDiv{
    display: block;
    margin-top: 2rem;
    font-size: 2rem;
    font-weight: 700;
    text-align: center;
}