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                <div class="rainbow-text" data-splitting>Rainbow Text</div>

<div class="rainbow-text animated" data-splitting>Animated Rainbow Text</div>


                /* Clear out these styles to start fresh or use this as a base! */

@import url(;

html { height: 100%; display: flex; }
body { margin: auto; }
html, body {
  background: #00043C;
  color: #FFF;
  font: normal 600 7vw/1.5 Kanit, sans-serif;
  text-align: center;

.rainbow-text .char { 
  color: hsl(
    calc(360deg * var(--char-percent)

.rainbow-text.animated .char {
  animation: rainbow-colors 2s linear infinite;
  animation-delay: calc(-2s * var(--char-percent));
/* Unfortunately, browsers try to take the shortest distance between transition/animation properties, so a simple `0turn` to `1turn` doesn't get the proper effect. */
@keyframes rainbow-colors {
  0% { color: hsl(0turn, 90%, 65%); }
  25% { color: hsl(.25turn, 90%, 65%); }
  50% { color: hsl(.5turn, 90%, 65%); }
  75% { color: hsl(.75turn, 90%, 65%); }
  100% { color: hsl(1turn, 90%, 65%); }