Interactive entry

Alternate (yoyo)

Alternate (yoyo) helps use continuous motion for waiting, liveliness, or ambient atmosphere.

Entrances & exits Sequencing & timing Movement & transforms State transitions

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Preview, parameters, and exports

Alternate (yoyo) helps use continuous motion for waiting, liveliness, or ambient atmosphere.

A loop that plays forward then reverses each iteration, instead of jumping back to the start

Browse categories

Alternate (yoyo)

Duration1200ms

Distance28px

Delay0ms

Curvesoft

.motion-card {
  animation-name: motion-alternate;
  animation-duration: 1200ms;
  animation-timing-function: cubic-bezier(0.23, 1, 0.32, 1);
  animation-delay: 0ms;
  animation-fill-mode: both;
  will-change: transform, opacity;
  transform-origin: center;
  animation-iteration-count: infinite;
}

@keyframes motion-alternate {
  from {
    opacity: 0;
    transform: translateY(0) scale(0.98);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@media (prefers-reduced-motion: reduce) {
  .motion-card {
    animation-name: motion-alternate-reduced;
    animation-duration: 180ms;
    animation-delay: 0ms;
    transform: none;
    animation-iteration-count: 1;
  }
}

@keyframes motion-alternate-reduced {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

Agent prompt

Use Alternate (yoyo) for a UI fragment: Alternate (yoyo) helps use continuous motion for waiting, liveliness, or ambient atmosphere. Animate transform and opacity, keep the duration at 1200ms, use 28px of visual amplitude, add a 0ms delay, use soft easing (cubic-bezier(0.23, 1, 0.32, 1)), and include a reduced-motion fallback.

intent: entrancefeel: softcontext: card

Usage

Use it when you need to use continuous motion for waiting, liveliness, or ambient atmosphere.
Good for low- or medium-frequency UI changes that should stay short, clear, and interruptible.
Copy the prompt or CSS and hand it to an agent for implementation.

Examples

Preview Alternate (yoyo) on a card, list item, or lightweight panel.
Tune duration, travel, delay, and curve until Alternate (yoyo) matches the surrounding interface.

Review notes

Prefer transform and opacity so motion stays off layout and paint work.
Keep UI motion under 300ms; frequent feedback should be shorter.
Avoid scale(0) and UI ease-in; use a physical starting point and a strong ease-out curve.

Reduced motion

Under reduced motion, Alternate (yoyo) removes travel, rotation, or looping and keeps a short fade or state comparison.

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