Modern CSS Gradient Effects

Animated, mesh, conic and text gradients built from the theme colours.

1Animated Rainbow

A full-spectrum gradient that flows endlessly across banners, buttons and progress bars. Class: fx-animated-rainbow

Learn by doing, not just watching

Every colour, always moving.

<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
  <div class="fx-animated-rainbow rounded-4 p-4 text-center w-100" style="max-width:18rem;text-shadow:0 1px 3px rgba(0,0,0,.3)">
    <h3 class="h5 fw-bold mb-1">Learn by doing, not just watching</h3>
    <p class="small mb-0">Every colour, always moving.</p>
  </div>
  <button type="button" class="btn rounded-pill border-0 fx-animated-rainbow">Celebrate</button>
</div>

/* CSS (already in assets/css/effects.css) */
.fx-animated-rainbow {
  color: #fff;
  background: linear-gradient(90deg, #ff3d7f, #ff9f1c, #ffd23f, #3bce73, #2ec4ff, #7b5cff, #ff3d7f);
  background-size: 300% 100%;
  animation: fx-animated-rainbow-flow 8s linear infinite;
}
@keyframes fx-animated-rainbow-flow { to { background-position: -150% 0; } }
@media (prefers-reduced-motion: reduce) {
  .fx-animated-rainbow, .fx-animated-rainbow::before, .fx-animated-rainbow::after, .fx-animated-rainbow *, .fx-animated-rainbow *::before, .fx-animated-rainbow *::after { animation: none !important; transition: none !important; }
}

2Shimmer Effect

A diagonal light sweep that glides across buttons, cards or images every few seconds. Class: fx-shimmer-effect

<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
  <button type="button" class="btn btn-primary btn-lg fx-shimmer-effect">Claim offer</button>
  <div class="fx-shimmer-effect rounded-3">
    <img src="../assets/img/product-2.svg" alt="Shiny product" class="d-block object-fit-cover" style="width:110px;height:110px">
  </div>
</div>

/* CSS (already in assets/css/effects.css) */
.fx-shimmer-effect { position: relative; overflow: hidden; isolation: isolate; }
.fx-shimmer-effect::after {
  content: ""; position: absolute; top: 0; bottom: 0; left: 0; width: 60%; pointer-events: none;
  background: linear-gradient(110deg, transparent 20%, rgba(255, 255, 255, .55) 50%, transparent 80%);
  transform: translateX(-120%);
  animation: fx-shimmer-effect-sweep 3.2s ease-in-out infinite;
}
@keyframes fx-shimmer-effect-sweep { 0% { transform: translateX(-120%); } 45%, 100% { transform: translateX(260%); } }
@media (prefers-reduced-motion: reduce) {
  .fx-shimmer-effect, .fx-shimmer-effect::before, .fx-shimmer-effect::after, .fx-shimmer-effect *, .fx-shimmer-effect *::before, .fx-shimmer-effect *::after { animation: none !important; transition: none !important; }
}