body {
    font-family: sans-serif;
    line-height: 1.6;
    margin: 0;
    padding: 0;
    background-color: #f4f4f4;
    color: #333;
}

header {
    background-color: #333;
    color: #fff;
    text-align: center;
    padding: 1em 0;
}

header h1 {
    margin: 0;
}

.content {
    padding: 20px;
    background-color: #fff;
    margin: 20px;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

ul {
    list-style: square;
}

a {
    color: #007bff;
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}