body {
    font-family: Arial, sans-serif;
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
    line-height: 1.6;
    color: #333;
}
h1 {
    font-size: 1.8em;
    color: #333;
}
p {
    font-size: 1em;
}
a {
    color: #0066cc;
    text-decoration: none;
}
a:hover {
    text-decoration: underline;
}
ul {
    list-style-type: none;
    padding: 0;
}
li {
    margin: 10px 0;
}
@media (max-width: 600px) {
    body {
        padding: 15px;
    }
    h1 {
        font-size: 1.5em;
    }
    p, li {
        font-size: 0.9em;
    }
}