body {
    font-family: Arial, sans-serif;
    background-color: #f0f0f0;
    color: #333;
}
header {
    background-color: #FFFFFF;
    padding: 10px;
    text-align: center;
    color: #212c62;
}
nav a {
    margin: 0 15px;
    color: #212c62;
    text-decoration: none;
}
main {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: #ffffff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

main table {
width: 100%;
    border-collapse: collapse;
}


main th, main td {
    width: 33.33%;
        padding: 10px;
    text-align: center;
}

th {
    background-color: #f2f2f2;
}