body {
  font-family: Arial, sans-serif;
  padding: 20px;
}
#targetText {
  font-size: 18px;
  margin: 20px 0;
  white-space: pre-wrap;
}
textarea {
  width: 100%;
  height: 100px;
  font-size: 18px;
}
.correct {
  color: black;
}
.incorrect {
  color: red;
}