body {
  font-family: Arial, sans-serif;
  background-color: #f0f0f0;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  margin: 0;
}

.chat-container {
  width: 300px;
  height: 400px;
  background-color: white;
  border: 1px solid #ddd;
  display: flex;
  flex-direction: column;
}

.messages {
  flex: 1;
  padding: 10px;
  overflow-y: auto;
  background-color: #f9f9f9;
}

#messageInput {
  padding: 10px;
  border: 1px solid #ccc;
  margin: 5px;
}

#sendButton {
  padding: 10px;
  border: 1px solid #ccc;
  background-color: #4CAF50;
  color: white;
  cursor: pointer;
}