body {
  margin: 0;
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #111;
  color: #0ff;
  font-family: "Courier New", Courier, monospace;
  overflow: hidden;
}

h1 {
  margin: 0;
  font-size: 0;
}

.ascii {
  line-height: 1.2;
  white-space: pre;
  opacity: 0;
  animation: fadeIn 1.5s forwards;
}

.cursor {
  display: inline-block;
  width: 0.6ch;
  background: #0ff;
  margin-left: 0.2ch;
  animation: blink 1s steps(2) infinite;
}

@keyframes fadeIn {
  from { opacity:0; transform:translateY(-20px); }
  to   { opacity:1; transform:translateY(0); }
}

@keyframes blink {
  0%, 50% { opacity: 0; }
  51%, 100% { opacity: 1; }
}

@media (max-width: 600px) {
  .ascii { font-size: 0.7rem; }
}