Keyframe animations for cards, icons, loaders and headings - drop a class on an element and it comes alive.
1Heartbeat
A double-beat pulse for like buttons, favourite icons and notification badges. Class: fx-heartbeat
<div class="d-flex flex-wrap align-items-center justify-content-center gap-3 p-3 h-100" style="min-height:200px">
<span class="display-4 text-danger fx-heartbeat"><i class="bi bi-heart-fill" aria-hidden="true"></i></span>
<button type="button" class="btn btn-outline-danger rounded-pill"><span class="fx-heartbeat"><i class="bi bi-heart-fill" aria-hidden="true"></i></span> 619 likes</button>
</div>
/* CSS (already in assets/css/effects.css) */
.fx-heartbeat { display: inline-block; animation: fx-heartbeat-beat 1.5s ease-in-out infinite; transform-origin: center; }
@keyframes fx-heartbeat-beat {
0%, 40%, 100% { transform: scale(1); }
12% { transform: scale(1.2); }
24% { transform: scale(.96); }
32% { transform: scale(1.14); }
}
@media (prefers-reduced-motion: reduce) {
.fx-heartbeat, .fx-heartbeat::before, .fx-heartbeat::after, .fx-heartbeat *, .fx-heartbeat *::before, .fx-heartbeat *::after { animation: none !important; transition: none !important; }
}2Shimmer 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; }
}