<h2 class="radikalwp-text-neon">NEON<//h2>

.radikalwp-text-neon {
  font-size: 46px; font-weight: 900; margin: 0; color: #f472b6; letter-spacing: 4px;
  text-shadow: 0 0 8px rgba(244,114,182,.8), 0 0 22px rgba(236,72,153,.55), 0 0 44px rgba(236,72,153,.35);
}