.chart-container { width: 100%; margin: 0 auto; }

body {
    font-family: Arial, sans-serif; text-align: center; 
    margin: 20px;
}

table {
    width: 70%;
    border-collapse: collapse;
}

th, td {
    padding: 10px;
    text-align: left;
}

th {
    background-color: #f2f2f2;
}

tr:nth-child(even) {
    background-color: #f9f9f9;
}