body {
  background-color: #ffffff;
  color: #000000;
  font-family: "Courier New", Courier, monospace;
  padding: 20px;
}

pre {
  font-family: "Courier New", Courier, monospace;
  color: #000000;
}

input, button {
  font-family: "Courier New", Courier, monospace;
  font-size: 1em;
  color: #000000;
  background-color: #ffffff;
  border: 1px solid #000000;
  padding: 4px;
}

.flicker {
  opacity: 0;
}

.glitch {
  opacity: 0.2;
}

#message.correct-answer {
  font-size: 0.75em;
  white-space: pre-wrap;
}