body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background: #111;
}

h1 {
  font-size: 4rem;
  font-weight: 900;
  font-family: system-ui, sans-serif;
  text-align: center;

  /* rainbow text */
  background: linear-gradient(
    90deg,
    red,
    orange,
    yellow,
    lime,
    cyan,
    blue,
    violet
  );
  background-size: 300% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;

  /* curved / pretty */
  display: inline-block;
  transform: rotate(-3deg) skew(-6deg);
  letter-spacing: 0.08em;
  text-shadow: 0 0 12px rgba(255,255,255,0.4);

  /* reflection */
  -webkit-box-reflect: below 8px
    linear-gradient(transparent, rgba(255,255,255,0.35));

  /* animated rainbow */
  animation: rainbow 5s linear infinite;
}

@keyframes rainbow {
  to {
    background-position: 300% center;
  }
}