body {
    font-family: Arial, sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    color: #333;
    background: #f4f4f9;
}

header {
    background: #0073e6;
    color: #fff;
    padding: 20px 10px;
    text-align: center;
}

header h1 {
    margin: 0;
}

main {
    max-width: 800px;
    margin: 20px auto;
    padding: 10px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.1);
}

section {
    margin-bottom: 20px;
}

footer {
    text-align: center;
    padding: 10px 0;
    background: #333;
    color: #fff;
}