#chat-container {
    max-width: 600px;
    margin: auto;
    padding: 20px;
    border: 1px solid #ccc;
    border-radius: 5px;
    background-color: #f9f9f9;
}

#chat-history {
    height: 400px;
    overflow-y: auto;
    margin-bottom: 10px;
    border: 1px solid #ddd;
    padding: 10px;
    background: white;
}

#user-input {
    width: calc(100% - 90px);
}

button {
    padding: 10px;
}