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exit-animations

exit-animations

github.com/dylantarreDesign & UI132507 installsUpdated 43w ago
Repository

About exit-animations

A design skill for applying Disney's 12 animation principles to UI exit animations. It gives timing and easing guidance for common elements, along with CSS patterns for exits and list-item collapse.

Key features

  1. 01Exit guidance based on 12 principles
  2. 02Timing recommendations by UI element
  3. 03Easing and trajectory guidance
  4. 04CSS exit and collapse patterns

Use cases

  1. 01Designing tooltip and dropdown dismissal
  2. 02Animating modal and toast exits
  3. 03Removing list items with staged collapse

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/dylantarre/animation-principles --skill exit-animations

After installing, type/exit-animationsin Claude Code to confirm it loaded.

Details

From the project README

Exit Animations

Apply Disney's 12 principles when removing elements from view.

Principle Application

Squash & Stretch: Scale down to 95-98% on exit. Element compresses slightly as it departs.

Anticipation: Brief pause or micro-movement before departure. A 50ms hesitation acknowledges the exit.

Staging: Exit toward logical destinations. Deleted items fall down, dismissed modals shrink to origin, sidebars return to their edge.

Straight Ahead vs Pose-to-Pose: Pose-to-pose with clear visible→invisible states. Plan the exit trajectory.

Follow Through & Overlapping: Content exits before container. Text fades 50ms before the card collapses.

Slow In/Slow Out: Use ease-in for exits. Gentle start, accelerating departure: cubic-bezier(0.4, 0, 1, 1).

Arcs: Exit on curves, not straight lines. Dismissed notifications arc upward-and-out.

Secondary Action: Combine opacity fade with directional movement. Pure fades feel like errors.

Timing:

  • Exits should be 20-30% faster than entrances
  • Quick exits: 100-150ms (tooltips, dropdowns)
  • Standard exits: 150-200ms (modals, toasts)
  • Graceful exits: 200-300ms (page transitions)

Exaggeration: Scale to 0.9 for dramatic departure, 0.97 for subtle dismissal.

Solid Drawing: Maintain spatial logic. Elements should exit the way they came or toward where they "belong."

Appeal: Exits confirm user intent. Make dismissals feel decisive, not abrupt.

Timing Recommendations

Element TypeDurationEasingNotes
Tooltip100msease-inFaster than entrance
Dropdown150msease-inCollapse upward
Toast150msease-inSlide to origin
Modal200msease-inContent first, overlay last
Deleted Item200msease-inCollapse height after fade
Page250msease-inCurrent page exits, then new enters

Implementation Pattern

.exiting {
  animation: exit 200ms cubic-bezier(0.4, 0, 1, 1) forwards;
}

@keyframes exit {
  from {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
  to {
    opacity: 0;
    transform: translateY(-10px) scale(0.98);
  }
}

Collapse Pattern

For removed list items:

  1. Fade out content (150ms)
  2. Collapse height (150ms, starts at 100ms)
  3. Remove from DOM after animation completes

Total perceived time: 250ms. Always use will-change: opacity, transform for smooth exits.

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