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

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

.chat-box {
    min-height: 200px;
    border: 1px solid #ccc;
    border-radius: 5px;
    padding: 10px;
    margin-bottom: 10px;
    overflow-y: scroll;
}

input[type="text"] {
    width: calc(100% - 70px);
    padding: 5px;
    margin-right: 5px;
}

button {
    padding: 5px 10px;
    background-color: #007bff;
    color: white;
    border: none;
    border-radius: 3px;
    cursor: pointer;
}