body {
    font-family: Arial, sans-serif;
    background: #f4f4f4;
    margin: 0;
    padding: 0;
}

#chat-container {
    max-width: 600px;
    margin: 40px auto;
    background: white;
    padding: 20px;
    border-radius: 10px;
}

#chat-box {
    height: 300px;
    overflow-y: auto;
    border: 1px solid #ddd;
    padding: 10px;
    margin-bottom: 10px;
    background: #f9f9f9;
}

.chat-message {
    margin-bottom: 10px;
}

.red {
    color: crimson;
}