body {
    font-family: Arial, sans-serif;
    margin: 0;
    padding: 0;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

header {
    background-color: #f0f0f0;
    padding: 10px;
    text-align: center;
}

.chatbot-container {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

iframe {
    width: 100%;
    height: 100%;
    border: none;
}