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Use when building deliberate motion between 800-1200ms - dramatic reveals, loading sequences, storytelling moments where users should pause and absorb

Use this Skill: https://skilld.dev/gh/dylantarre/animation-principles/slow-800-1200ms

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SKILL.md

≈42 tokens always: the name and description. ≈728 when used: this file.

Slow Animations (800-1200ms)

At 800-1200ms, animation approaches cinematic territory. This is deliberate, intentional motion for moments that matter. Users are expected to stop and watch.

Disney Principles at Slow Speed

Cinematic Application

Squash & Stretch: Pronounced and characterful - 25-35% deformation tells stories. Objects have weight and personality.

Anticipation: Full theatrical wind-up - 200-300ms preparation. The audience knows something is coming.

Staging: Scene composition - think in terms of camera and stage. Clear visual hierarchy with entrance order.

Straight Ahead/Pose to Pose: Pose to pose essential - 4-6 key poses for 1 second of motion.

Follow Through: Extended overlap - different elements settle at clearly different times, 200-300ms of settling.

Slow In/Slow Out: Dramatic curves - strong ease-in creates weight, strong ease-out creates impact.

Arcs: Sweeping curves - motion paths are clearly curved, visible trajectories.

Secondary Action: Complex layering - multiple levels of supporting action enhance primary motion.

Timing: 48-72 frames at 60fps. Near-film quality frame counts.

Exaggeration: Theatrical - push proportions and motion for emotional impact.

Solid Drawing: Full dimensional transforms - parallax, depth, 3D rotation.

Appeal: Emotional connection - slow motion creates intimacy with the interface.

Easing Recommendations

/* Dramatic, weighted motion */
transition: all 1000ms cubic-bezier(0.16, 1, 0.3, 1);

/* Graceful entrance */
transition: all 900ms cubic-bezier(0.22, 1, 0.36, 1);

/* Heavy, impactful landing */
transition: transform 1100ms cubic-bezier(0.33, 1, 0.68, 1);

/* Elastic, memorable */
transition: all 1000ms cubic-bezier(0.68, -0.6, 0.32, 1.6);

Best Use Cases

  • App launch sequences
  • Major feature reveals
  • Storytelling moments
  • Error recovery animations
  • Achievement unlocks
  • Tutorial sequences
  • First-run experiences
  • Section transitions in presentations
  • Loading state to content reveals

Implementation Pattern

@keyframes slowReveal {
  0% {
    opacity: 0;
    transform: translateY(100px) scale(0.8);
  }
  60% {
    opacity: 1;
  }
  100% {
    transform: translateY(0) scale(1);
  }
}

.slow-reveal {
  animation: slowReveal 1000ms cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* Staggered sequence */
.sequence-item {
  animation: slowReveal 900ms cubic-bezier(0.22, 1, 0.36, 1) forwards;
}
.sequence-item:nth-child(n) {
  animation-delay: calc(var(--index) * 150ms);
}

When NOT to Use

  • Navigation between views (too slow)
  • Repeated interactions (users get impatient)
  • High-frequency actions
  • Data-heavy interfaces
  • Productivity tools

Key Insight

Slow animations demand attention as payment. Only use when the moment is worth the user's time. These animations create memories, not just feedback.

Source: SKILL.md on GitHub

1 warning15d5 checks · Risk SAFE
  • Gen Agent Trust Hub15d

    This skill is an educational reference guide regarding UI animation timing and Disney animation principles. It contains documentation and CSS styling snippets with no executable scripts or security risks detected.

  • Socket15d

    No alerts

  • Snyk15d

    Risk: LOW · No issues

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    1/1 file flagged

  • ZeroLeaks5mo

    Score: 93/100 · 2 sections analyzed

Signed by skilld at 747c656. This ties the file your Agent reads to that commit on GitHub. It does not review the instructions.

Last checked against GitHub 2 months ago.

Dormantupdated 9 months ago

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