body {
    font-family: 'Tahoma', sans-serif;
    background-color: #E9ECEF;
    margin: 0;
    padding: 0;
}

#container {
    max-width: 800px;
    margin: 40px auto;
    padding: 20px;
    border: 2px solid #007BFF;
    border-radius: 10px;
    background-color: white;
}

header {
    background-color: #007BFF;
    color: white;
    padding: 20px;
    text-align: center;
}

main {
    padding: 20px;
    line-height: 1.6;
}

footer {
    background-color: #007BFF;
    color: white;
    text-align: center;
    padding: 10px;
}