body {
    font-family: Arial, sans-serif;
    background-color: #f4f4f4;
    margin: 0;
    padding: 0;
    text-align: center;
}
.container {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px;
}
.logo {
    max-width: 150px;
    margin-bottom: 20px;
}
.chat-frame {
    border: none;
    margin-top: 20px;
}