body {
  font-family: Arial, sans-serif;
}

.chat-container {
  max-width: 500px;
  margin: 0 auto;
  padding: 20px;
  border: 1px solid #ccc;
  border-radius: 5px;
  background-color: #f9f9f9;
}

#chat-log {
  height: 300px;
  overflow-y: scroll;
  margin-bottom: 10px;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
  background-color: #fff;
}

#user-input {
  width: 100%;
  padding: 10px;
  border: 1px solid #ddd;
  border-radius: 5px;
}