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

.chat-container {
    max-width: 400px;
    margin: 50px auto;
    background-color: #fff;
    border-radius: 8px;
    box-shadow: 0 0 10px rgba(0, 255, 0, 0.1);
    padding: 20px;
}

.chat-box {
    max-height: 300px;
    overflow-y: auto;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #ddd;
}

input[type="text"] {
    width: calc(100% - 70px);
    padding: 10px;
    margin-top: 10px;
    border: 1px solid #ddd;
    border-radius: 8px;
}

button {
    width: 60px;
    padding: 10px;
    margin-top: 10px;
    background-color: #007bff;
    color: #fff;
    border: none;
    border-radius: 8px;
    cursor: pointer;
}

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