.canvasjs-chart-credit {
    display: none;
}

.class-a {
    font-weight: bold;
    background-color: #90EE90 !important;
}

.class-b {
    font-weight: bold;
    background-color: #FFD700 !important;
}

.class-c {
    font-weight: bold;
    background-color: #FF6961 !important;
}