body {
  font-family: Arial, sans-serif;
  margin: 20px;
  text-align: center;
}

#captcha {
  display: flex;
  justify-content: center;
  margin-bottom: 10px;
}

#captcha span {
  width: 20px;
  height: 30px;
  margin: 0 5px;
  font-size: 24px;
  background-color: #f0f0f0;

  line-height: 30px;
  text-align: center;
  font-family: "Silkscreen", sans-serif;
  color: red; 
}

#userInput {
  padding: 5px;
  font-size: 16px;
  margin-bottom: 10px;
}

button {
  padding: 5px 10px;
  font-size: 16px;
  cursor: pointer;
}

#result {
  margin-top: 10px;
  font-size: 18px;
  font-weight: bold;
}