Modern CSS Animations

Keyframe animations for cards, icons, loaders and headings - drop a class on an element and it comes alive.

1Bouncing Text

Makes each letter of a short word hop in turn; wrap every letter in a span with --i set to its index. Class: fx-bouncing-text

<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
  <h2 class="display-5 fw-bold mb-0 fx-bouncing-text" aria-label="Ready?"><span style="--i:0" aria-hidden="true">R</span><span style="--i:1" aria-hidden="true">e</span><span style="--i:2" aria-hidden="true">a</span><span style="--i:3" aria-hidden="true">d</span><span style="--i:4" aria-hidden="true">y</span><span style="--i:5" aria-hidden="true">?</span></h2>
</div>

/* CSS (already in assets/css/effects.css) */
.fx-bouncing-text { display: inline-flex; }
.fx-bouncing-text > span {
  display: inline-block;
  animation: fx-bouncing-text-bounce 1.6s ease-in-out infinite;
  animation-delay: calc(var(--i, 0) * .09s);
}
@keyframes fx-bouncing-text-bounce {
  0%, 60%, 100% { transform: translateY(0); }
  25% { transform: translateY(-14px); color: var(--wt-primary); }
  40% { transform: translateY(2px); }
}
@media (prefers-reduced-motion: reduce) {
  .fx-bouncing-text, .fx-bouncing-text::before, .fx-bouncing-text::after, .fx-bouncing-text *, .fx-bouncing-text *::before, .fx-bouncing-text *::after { animation: none !important; transition: none !important; }
}

2Particle Float

Fills a card or panel with small glowing particles that rise behind its content. Class: fx-particle-float

Smarter payments for growing companies

Particles drift up behind the content.

<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-particle-float rounded-4 border p-4 text-center w-100" style="max-width:18rem">
    <div class="fs-2 text-primary">
      <i class="bi bi-stars" aria-hidden="true"></i>
    </div>
    <h3 class="h5 mb-1">Smarter payments for growing companies</h3>
    <p class="small text-body-secondary mb-0">Particles drift up behind the content.</p>
  </div>
</div>

/* CSS (already in assets/css/effects.css) */
.fx-particle-float { position: relative; isolation: isolate; overflow: hidden; }
.fx-particle-float::before, .fx-particle-float::after {
  content: ""; position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background-image:
    radial-gradient(circle at 12% 30%, rgba(var(--wt-primary-rgb), .7) 0 2px, transparent 3px),
    radial-gradient(circle at 38% 80%, rgba(var(--wt-accent-rgb), .7) 0 3px, transparent 4px),
    radial-gradient(circle at 62% 45%, rgba(var(--wt-secondary-rgb), .6) 0 2px, transparent 3px),
    radial-gradient(circle at 86% 15%, rgba(var(--wt-primary-rgb), .6) 0 3px, transparent 4px);
  background-size: 160px 160px;
  animation: fx-particle-float-rise 10s linear infinite;
}
.fx-particle-float::after { background-size: 230px 230px; opacity: .6; animation: fx-particle-float-rise-slow 16s linear infinite; }
@keyframes fx-particle-float-rise { to { background-position: 0 -160px; } }
@keyframes fx-particle-float-rise-slow { to { background-position: 0 -230px; } }
@media (prefers-reduced-motion: reduce) {
  .fx-particle-float, .fx-particle-float::before, .fx-particle-float::after, .fx-particle-float *, .fx-particle-float *::before, .fx-particle-float *::after { animation: none !important; transition: none !important; }
}