<button class="radikalwp-btn-neon-pink">ورود به دنیای سایبری<//button>

.radikalwp-btn-neon-pink {
  padding: 13px 34px; background: #1a0b1f; color: #f472b6; border: 1.5px solid #ec4899;
  border-radius: 12px; cursor: pointer; font-size: 14px; font-weight: 700; font-family: inherit;
  box-shadow: 0 0 10px rgba(236,72,153,.4), inset 0 0 10px rgba(236,72,153,.15);
  transition: box-shadow .25s, color .25s;
}
.radikalwp-btn-neon-pink:hover {
  color: #fff; box-shadow: 0 0 24px rgba(236,72,153,.8), inset 0 0 16px rgba(236,72,153,.35);
}