#chatroom {
    width: 50%;
    margin: auto;
    text-align: center;
}

#messages {
    border: 1px solid #ccc;
    height: 300px;
    overflow-y: scroll;
    margin-bottom: 10px;
}

#message-input {
    width: 80%;
    padding: 10px;
}

button {
    padding: 10px;
}