Neon Text Effect

<div style="background: #000; padding: 60px; border-radius: 8px;">
  <div class="neon-text">NEON</div>
</div>

.neon-text {
  font-size: 48px;
  font-weight: bold;
  color: #fff;
  text-align: center;
  text-shadow: 
    0 0 5px #00ffff,
    0 0 10px #00ffff,
    0 0 20px #00ffff,
    0 0 40px #00ffff,
    0 0 80px #00ffff;
  animation: neon-flicker 1.5s infinite alternate;
  font-family: 'Courier New', monospace;
}
@keyframes neon-flicker {
  0%, 100% {
    text-shadow: 
      0 0 5px #00ffff,
      0 0 10px #00ffff,
      0 0 20px #00ffff,
      0 0 40px #00ffff,
      0 0 80px #00ffff;
  }
  50% {
    text-shadow: 
      0 0 2px #00ffff,
      0 0 5px #00ffff,
      0 0 8px #00ffff,
      0 0 12px #00ffff,
      0 0 20px #00ffff;
  }
}