Modern CSS Animations

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

1Multi-Layer Spinner

A loading indicator made of three counter-rotating rings in the theme colours. Class: fx-multi-layer-spinner

Preparing your workflow

<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
  <div class="text-center">
    <div class="fx-multi-layer-spinner" role="status">
      <span class="visually-hidden">Loading...</span>
    </div>
    <p class="small text-body-secondary mt-3 mb-0">Preparing your workflow</p>
  </div>
</div>

/* CSS (already in assets/css/effects.css) */
.fx-multi-layer-spinner {
  position: relative; display: inline-block; width: 4rem; height: 4rem; border-radius: 50%;
  border: 4px solid transparent; border-top-color: var(--wt-primary);
  animation: fx-multi-layer-spinner-spin 1.1s linear infinite;
}
.fx-multi-layer-spinner::before, .fx-multi-layer-spinner::after { content: ""; position: absolute; border-radius: 50%; border: 4px solid transparent; }
.fx-multi-layer-spinner::before { inset: 4px; border-top-color: var(--wt-secondary); animation: fx-multi-layer-spinner-spin 1.7s linear infinite reverse; }
.fx-multi-layer-spinner::after { inset: 14px; border-top-color: var(--wt-accent); animation: fx-multi-layer-spinner-spin .8s linear infinite; }
@keyframes fx-multi-layer-spinner-spin { to { transform: rotate(360deg); } }
@media (prefers-reduced-motion: reduce) {
  .fx-multi-layer-spinner, .fx-multi-layer-spinner::before, .fx-multi-layer-spinner::after, .fx-multi-layer-spinner *, .fx-multi-layer-spinner *::before, .fx-multi-layer-spinner *::after { animation: none !important; transition: none !important; }
}

2Gradient Wave

A banner whose theme gradient flows sideways while a soft wave rolls along its bottom edge. Class: fx-gradient-wave

New season

Plan, build and launch in one place

Explore

<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-gradient-wave rounded-4 p-4 w-100" style="max-width:19rem">
    <p class="small text-uppercase fw-semibold mb-1 opacity-75">New season</p>
    <h3 class="h4 fw-bold mb-3">Plan, build and launch in one place</h3>
    <a href="#" class="btn btn-light btn-sm">Explore</a> 
  </div>
</div>

/* CSS (already in assets/css/effects.css) */
.fx-gradient-wave {
  position: relative; overflow: hidden; color: var(--wt-on-primary, #fff);
  background: linear-gradient(90deg, var(--wt-primary), var(--wt-secondary), var(--wt-accent), var(--wt-primary));
  background-size: 200% 100%;
  animation: fx-gradient-wave-flow 8s linear infinite;
}
.fx-gradient-wave::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 24px; pointer-events: none;
  background: radial-gradient(20px 12px at 50% 100%, rgba(255, 255, 255, .35) 98%, transparent 100%) 0 100% / 40px 24px repeat-x;
  animation: fx-gradient-wave-roll 2.4s linear infinite;
}
.fx-gradient-wave > * { position: relative; z-index: 1; }
@keyframes fx-gradient-wave-flow { to { background-position: -200% 0; } }
@keyframes fx-gradient-wave-roll { to { background-position: 40px 100%; } }
@media (prefers-reduced-motion: reduce) {
  .fx-gradient-wave, .fx-gradient-wave::before, .fx-gradient-wave::after, .fx-gradient-wave *, .fx-gradient-wave *::before, .fx-gradient-wave *::after { animation: none !important; transition: none !important; }
}

3Typewriter

Types a single line of monospace text letter by letter with a blinking caret; set --fx-ch to the character count. Class: fx-typewriter

terminal

Deploy complete

<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
  <div class="bg-dark text-white rounded-3 p-3 w-100" style="max-width:18rem">
    <div class="small text-white-50 mb-1">
      terminal
    </div>
    <span class="fx-typewriter" style="--fx-ch:15">Deploy complete</span>
  </div>
</div>

/* CSS (already in assets/css/effects.css) */
.fx-typewriter {
  display: inline-block; max-width: 100%; overflow: hidden; white-space: nowrap; vertical-align: bottom;
  font-family: var(--bs-font-monospace, monospace);
  width: calc(var(--fx-ch, 20) * 1ch + .15em);
  border-right: .12em solid var(--wt-primary);
  animation: fx-typewriter-type 4.5s steps(var(--fx-ch, 20)) infinite, fx-typewriter-caret .8s step-end infinite;
}
@keyframes fx-typewriter-type { 0% { width: 0; } 65%, 100% { width: calc(var(--fx-ch, 20) * 1ch + .15em); } }
@keyframes fx-typewriter-caret { 50% { border-color: transparent; } }
@media (prefers-reduced-motion: reduce) {
  .fx-typewriter, .fx-typewriter::before, .fx-typewriter::after, .fx-typewriter *, .fx-typewriter *::before, .fx-typewriter *::after { animation: none !important; transition: none !important; }
}