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

.container {
    width: 80%;
    max-width: 900px;
    margin: 20px auto;
    padding: 20px;
    background: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
}

h1, h2, h3 {
    color: #444;
}

h1 {
    margin-bottom: 20px;
    text-align: center;
}

h2, h3 {
    margin-top: 20px;
}

p {
    margin: 10px 0;
}