Modern CSS Animations

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

1Orbital Motion

Two small planets circle around an avatar, logo or icon on separate orbits. Class: fx-orbital-motion

<div class="flex flex-wrap items-center justify-center gap-4 p-4 h-full" style="min-height:200px">
  <div class="fx-orbital-motion">
    <img src="../assets/img/avatar-5.svg" alt="Team member avatar" class="rounded-full shadow-md" style="width:4.5rem;height:4.5rem">
  </div>
</div>

/* CSS (already in assets/css/effects.css) */
.fx-orbital-motion {
  position: relative; display: inline-grid; place-items: center; width: 9rem; height: 9rem;
  border-radius: 50%; border: 1px dashed rgba(var(--wt-primary-rgb), .45);
}
.fx-orbital-motion::before, .fx-orbital-motion::after {
  content: ""; position: absolute; top: 50%; left: 50%; border-radius: 50%; pointer-events: none;
}
.fx-orbital-motion::before {
  width: 14px; height: 14px; margin: -7px; background: var(--wt-primary);
  box-shadow: 0 0 10px rgba(var(--wt-primary-rgb), .7);
  animation: fx-orbital-motion-outer 5s linear infinite;
}
.fx-orbital-motion::after {
  width: 10px; height: 10px; margin: -5px; background: var(--wt-accent);
  animation: fx-orbital-motion-inner 3.2s linear infinite reverse;
}
@keyframes fx-orbital-motion-outer { from { transform: rotate(0deg) translateX(4.5rem) rotate(0deg); } to { transform: rotate(360deg) translateX(4.5rem) rotate(-360deg); } }
@keyframes fx-orbital-motion-inner { from { transform: rotate(0deg) translateX(3.1rem); } to { transform: rotate(360deg) translateX(3.1rem); } }
@media (prefers-reduced-motion: reduce) {
  .fx-orbital-motion, .fx-orbital-motion::before, .fx-orbital-motion::after, .fx-orbital-motion *, .fx-orbital-motion *::before, .fx-orbital-motion *::after { animation: none !important; transition: none !important; }
}

2Typewriter

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

Welcome aboard

<div class="flex flex-wrap items-center justify-center gap-4 p-4 h-full" style="min-height:200px">
  <div class="bg-dark text-white rounded-lg p-4 w-full" style="max-width:18rem">
    <div class="small text-white/50 mb-1">
      terminal
    </div>
    <span class="fx-typewriter" style="--fx-ch:14">Welcome aboard</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(--ui-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; }
}

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="flex flex-wrap items-center justify-center gap-4 p-4 h-full" style="min-height:200px">
  <div class="card w-full" style="max-width:18rem" aria-busy="true" aria-label="Loading content">
    <div class="card-body">
      <div class="flex items-center gap-4 mb-4">
        <span class="fx-shimmer-skeleton rounded-full shrink-0" style="width:48px;height:48px"></span> 
        <div class="grow">
          <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; }
}