canvas { 
    width: 100%;
    height: auto;
    max-width: 434px;
}
 
.chat-toggle {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 1050;
}

.chatbox {
    position: fixed;
    bottom: 60px;
    right: 20px;
    width: 300px;
    background: #fff;
    border: 1px solid #ccc;
    border-radius: 4px;
    z-index: 1050;
    display: flex;
    flex-direction: column;
    max-height: 400px;
}

.chatbox .chat-messages {
    overflow-y: auto;
    padding: 10px;
    flex: 1;
}

.chatbox .chat-input {
    display: flex;
    border-top: 1px solid #eee;
}

.chatbox .chat-input input {
    flex: 1;
    border: none;
    border-right: 1px solid #eee;
    padding: 5px;
}

.chatbox .chat-input button {
    border: none;
}