#chat-container {
    width: 300px;
    height: 400px;
    border: 1px solid #ccc;
    padding: 10px;
    position: relative;
    margin: 20px auto;
    background-color: #f9f9f9;
}

#chat-box {
    height: 350px;
    overflow-y: scroll;
    margin-bottom: 10px;
    background-color: #fff;
    padding: 5px;
}

#chat-input {
    width: calc(100% - 90px);
    padding: 5px;
}

button {
    width: 80px;
    height: 30px;
    background-color: #4CAF50;
    color: white;
    border: none;
    cursor: pointer;
}

button:hover {
    background-color: #45a049;
}

.message {
    margin: 5px;
    padding: 10px;
    background-color: #f4f4f4;
    border-radius: 5px;
}

.message.server {
    background-color: #ddf;
}