h1 {
    margin-top: 20px;
    margin-bottom: 20px;
    margin-left: 10px;
}

.chart-box {
    display: flex;
    justify-content: center;   
    margin: 0 auto;            
}

.chart-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: 15px;
    width: 100%;
}