body, html {
    padding: 0;
    margin: 0;
    font-family: Arial, sans-serif;
}

.chat-container {
    max-width: 600px;
    margin: 20px auto;
    box-shadow: 0 0 10px rgba(0, 0, 0, 0.1);
    padding: 10px;
    background-color: #f9f9f9;
}

.chatbox {
    height: 400px;
    overflow-y: auto;
    background-color: #fff;
    margin-bottom: 10px;
    padding: 10px;
    border: 1px solid #ddd;
}

.input-box {
    width: calc(100% - 70px);
    padding: 10px;
    border: 1px solid #ddd;
}

.send-button {
    width: 60px;
    height: 42px;
    border: none;
    background-color: #007bff;
    color: white;
    cursor: pointer;
}

.send-button:hover {
    background-color: #0056b3;
}