Modern CSS Animations

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

1Floating Animation

Lets any card, icon or image drift gently up and down as if it were weightless. Class: fx-floating-animation

Networking lounges

Hover to pause

<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
  <div class="card border-0 shadow text-center fx-floating-animation" style="width:12rem">
    <div class="card-body">
      <div class="fs-1 text-primary mb-2">
        <i class="bi bi-rocket-takeoff-fill" aria-hidden="true"></i>
      </div>
      <h3 class="h6 mb-1">Networking lounges</h3>
      <p class="small text-body-secondary mb-0">Hover to pause</p>
    </div>
  </div>
</div>

/* CSS (already in assets/css/effects.css) */
.fx-floating-animation { animation: fx-floating-animation-float 3.6s ease-in-out infinite; will-change: transform; }
.fx-floating-animation:hover { animation-play-state: paused; }
@keyframes fx-floating-animation-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}
@media (prefers-reduced-motion: reduce) {
  .fx-floating-animation, .fx-floating-animation::before, .fx-floating-animation::after, .fx-floating-animation *, .fx-floating-animation *::before, .fx-floating-animation *::after { animation: none !important; transition: none !important; }
}

2Bouncing 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-ink); }
  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; }
}

3Shimmer Skeleton

Loading placeholders with a light sweep; add the class to every grey block of a skeleton card. Class: fx-shimmer-skeleton

<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
  <div class="card w-100" style="max-width:18rem" aria-busy="true" aria-label="Loading content">
    <div class="card-body">
      <div class="d-flex align-items-center gap-3 mb-3">
        <span class="fx-shimmer-skeleton rounded-circle flex-shrink-0" style="width:48px;height:48px"></span> 
        <div class="flex-grow-1">
          <span class="fx-shimmer-skeleton mb-2" style="width:70%"></span><span class="fx-shimmer-skeleton" style="width:45%"></span>
        </div>
      </div>
      <span class="fx-shimmer-skeleton mb-2" style="height:70px"></span> <span class="fx-shimmer-skeleton mb-2"></span> <span class="fx-shimmer-skeleton" style="width:60%"></span> 
    </div>
  </div>
</div>

/* CSS (already in assets/css/effects.css) */
.fx-shimmer-skeleton {
  display: block; min-height: .9rem; border-radius: var(--wt-radius, .5rem);
  background: linear-gradient(90deg, rgba(var(--wt-primary-rgb), .08) 25%, rgba(var(--wt-primary-rgb), .22) 37%, rgba(var(--wt-primary-rgb), .08) 63%);
  background-size: 400% 100%;
  animation: fx-shimmer-skeleton-shine 1.4s ease infinite;
}
@keyframes fx-shimmer-skeleton-shine { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }
@media (prefers-reduced-motion: reduce) {
  .fx-shimmer-skeleton, .fx-shimmer-skeleton::before, .fx-shimmer-skeleton::after, .fx-shimmer-skeleton *, .fx-shimmer-skeleton *::before, .fx-shimmer-skeleton *::after { animation: none !important; transition: none !important; }
}