#chat-box {
    width: 400px;
    height: 400px;
    border: 1px solid #ccc;
    overflow-y: scroll;
    padding: 10px;
    margin-bottom: 10px;
}
#message-input {
    width: 300px;
    padding: 5px;
}
#send-button {
    padding: 5px 10px;
    cursor: pointer;
}