body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background: #0077cc;
    color: white;
    text-align: center;
    padding: 20px;
    font-size: 1.5rem;
}

main {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background: white;
    border-radius: 10px;
    box-shadow: 0px 4px 10px rgba(0, 0, 0, 0.1);
}

h2 {
    text-align: center;
    color: #0077cc;
}

ul {
    list-style: none;
    padding: 0;
}

ul li {
    margin: 10px 0;
}

a {
    display: block;
    text-decoration: none;
    background: #0077cc;
    color: white;
    padding: 12px;
    border-radius: 5px;
    text-align: center;
    transition: 0.3s;
}

a:hover {
    background: #005fa3;
}