body {
    font-family: Arial, sans-serif;
    background-color: #f5f5f5;
    margin: 0;
    padding: 0;
}

.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: #fff;
    padding: 20px;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
}

header h1 {
    font-size: 24px;
    color: #333;
}

header p {
    font-size: 14px;
    color: #666;
    margin-top: -10px;
}

header a {
    font-size: 14px;
    color: #333;
    margin-top: -10px;
}

section h2 {
    font-size: 20px;
    color: #333;
    margin-top: 20px;
}

section h3 {
    font-size: 18px;
    color: #444;
    margin-top: 15px;
}

section p {
    font-size: 16px;
    color: #555;
    margin-top: 10px;
}

#main {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    flex-direction: column;
}

#download-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
}