body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: #ffffff;
    color: #000000;
    line-height: 1.6;
}

.container {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    box-sizing: border-box;
}

h1, h2 {
    color: #333333;
}

p {
    margin-bottom: 1em;
}

a {
    color: black;
}

@media (max-width: 600px) {
    .container {
        padding: 10px;
        margin: 10px;
    }

    h1, h2 {
        font-size: 1.5em;
    }

    p {
        font-size: 1em;
    }
}