body {
    font-family: Arial, sans-serif;
}

.chat-container {
    width: 300px;
    margin: 0 auto;
    border: 1px solid #ddd;
    border-radius: 5px;
    box-shadow: 0 0 10px rgba(0,0,0,0.1);
    padding: 10px;
    display: flex;
    flex-direction: column;
    height: 400px;
}

.chat-box {
    flex: 1;
    overflow-y: auto;
    border-bottom: 1px solid #ddd;
    padding: 5px;
}

.chat-input {
    display: flex;
}

#message-input {
    flex: 1;
    padding: 5px;
    border: 1px solid #ddd;
    border-radius: 5px;
}

#send-button {
    padding: 5px;
    border: none;
    background-color: #007bff;
    color: white;
    border-radius: 5px;
    cursor: pointer;
}