Css native

Skill t4sh/dotfiles/agents/skills/css-native

macOS bootstrap dotfiles: Brewfile, declarative symlinks, app prefs, macOS defaults, agent skills, vault secrets, make doctor. Fork-friendly.

Install

npx -y skills add t4sh/dotfiles --skill css-native

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What its author says it does

Copied from the file, not written here

Use when implementing Disney's 12 animation principles with pure CSS animations and transitions

SKILL.md

2.9 KB, 964 tokens by cl100k_base, as published. Nobody here has run it

CSS Native Animation Principles

Implement all 12 Disney animation principles using CSS animations, transitions, and transforms.

1. Squash and Stretch

@keyframes squash-stretch {
  0%, 100% { transform: scaleX(1) scaleY(1); }
  50% { transform: scaleX(1.2) scaleY(0.8); }
}
.ball { animation: squash-stretch 0.3s ease-in-out; }

2. Anticipation

@keyframes anticipate-jump {
  0% { transform: translateY(0); }
  20% { transform: translateY(10px) scaleY(0.9); } /* wind up */
  100% { transform: translateY(-100px); }
}

3. Staging

.hero { z-index: 10; filter: none; }
.background { z-index: 1; filter: blur(2px); opacity: 0.7; }

4. Straight Ahead / Pose to Pose

/* Pose to pose - define keyframes explicitly */
@keyframes walk-cycle {
  0% { background-position: 0 0; }
  25% { background-position: -100px 0; }
  50% { background-position: -200px 0; }
  75% { background-position: -300px 0; }
  100% { background-position: -400px 0; }
}

5. Follow Through and Overlapping Action

.character { animation: move 0.5s ease-out; }
.hair { animation: move 0.5s ease-out 0.05s; } /* slight delay */
.cape { animation: move 0.5s ease-out 0.1s; }

6. Slow In and Slow Out

.element {
  transition: transform 0.4s cubic-bezier(0.42, 0, 0.58, 1);
}
/* Or use: ease-in-out, ease-in, ease-out */

7. Arc

@keyframes arc-motion {
  0% { transform: translate(0, 0); }
  50% { transform: translate(100px, -80px); }
  100% { transform: translate(200px, 0); }
}
/* Use offset-path for true arcs */
.element { offset-path: path('M0,100 Q100,0 200,100'); }

8. Secondary Action

.button:hover {
  transform: scale(1.05);
}
.button:hover .icon {
  animation: wiggle 0.3s ease-in-out;
}

9. Timing

.fast { animation-duration: 0.15s; }
.normal { animation-duration: 0.3s; }
.slow { animation-duration: 0.6s; }
.dramatic { animation-duration: 1.2s; }

10. Exaggeration

@keyframes exaggerated-bounce {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-150px) scale(0.8, 1.3); }
}

11. Solid Drawing

.element {
  transform-style: preserve-3d;
  perspective: 1000px;
}
.face { transform: rotateY(20deg); }

12. Appeal

.appealing {
  border-radius: 50%;
  box-shadow: 0 4px 20px rgba(0,0,0,0.1);
  transition: all 0.3s ease;
}
.appealing:hover {
  transform: scale(1.02);
  box-shadow: 0 8px 30px rgba(0,0,0,0.15);
}

Timing Reference

Action	Duration
Micro-interaction	100-200ms
Button feedback	150-300ms
Page transitions	300-500ms
Complex animations	500-1000ms

Key CSS Properties

animation / @keyframes
transition
transform
offset-path (motion paths)
animation-timing-function
animation-delay