dylantarre/animation-principles1 file

Hover Interactions

Use when creating mouse hover effects - button highlights, card lifts, link underlines, image zooms, or any pointer-triggered animation.

Specification
Skill ID
dylantarre/animation-principles/hover-interactions
Publisher
dylantarre
Repository
animation-principles
Installs
0
Files
1
Synced
Sep 23, 2026
How to use it

Open any RiverX project, open the Skills panel in the chat, and search for this identifier. The files are fetched from the source repository at install time.

dylantarre/animation-principles/hover-interactionsInstalls these files
  • SKILL.md

What this skill tells the agent

Hover Interaction Animations

Apply Disney's 12 principles to mouse hover states.

Principle Application

Squash & Stretch: Cards can subtly scale (1.02-1.05) on hover, creating "lift" effect.

Anticipation: Hover IS anticipation for click. The hover state previews the interaction.

Staging: Hover effects should highlight the interactive element, not distract from it.

Straight Ahead vs Pose-to-Pose: Define rest and hover poses precisely. Transition smoothly between them.

Follow Through & Overlapping: Child elements animate after parent. Card lifts, then shadow expands.

Slow In/Slow Out: Hover-in: ease-out (fast response). Hover-out: ease-in-out (graceful return).

Arcs: Underlines can draw from center outward. Highlights sweep in curved paths.

Secondary Action: Combine multiple subtle effects. Scale + shadow + color shift together.

Timing:

  • Hover response: 150-200ms (must feel responsive)
  • Hover exit: 200-300ms (can be slightly slower)
  • Never exceed 300ms for hover-in

Exaggeration: Subtle - hover is preview, not performance. Scale max 1.05, shadow max +8px.

Solid Drawing: Hover states must feel like the same element elevated, not a replacement.

Appeal: Hover should invite clicking. Create anticipation without demanding action.

Timing Recommendations

Hover EffectHover-InHover-OutEasing
Color Change150ms200msease-out / ease-in-out
Scale/Lift200ms250msease-out / ease-in-out
Shadow200ms250msease-out / ease-in-out
Underline Draw200ms200msease-out
Image Zoom300ms400msease-out
Icon Shift150ms200msease-out

Implementation Patterns

/* Card lift with shadow */
.card {
  transition: transform 200ms ease-out, box-shadow 200ms ease-out;
}

.card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 12px 24px rgba(0,0,0,0.15);
}

/* Slower return */
.card:not(:hover) {
  transition: transform 250ms ease-in-out, box-shadow 250ms ease-in-out;
}

/* Underline draw from center */
.link {
  position: relative;
}

.link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  width: 0;
  height: 2px;
  background: currentColor;
  transition: width 200ms ease-out, left 200ms ease-out;
}

.link:hover::after {
  width: 100%;
  left: 0;
}

Icon Animation Pattern

.button-icon {
  transition: transform 150ms ease-out;
}

.button:hover .button-icon {
  transform: translateX(4px);
}

/* Arrow grows */
.arrow-icon {
  transition: transform 150ms ease-out;
}

.link:hover .arrow-icon {
  transform: translateX(4px) scale(1.1);
}

Key Rules

  1. Touch devices don't have hover - ensure functionality without it
  2. Hover-in must be under 200ms to feel responsive
  3. Don't move elements enough to cause mis-clicks
  4. Test with @media (hover: hover) to scope to pointer devices
  5. Combine max 3 properties to avoid overwhelming
@media (hover: hover) {
  .card:hover { /* hover effects */ }
}

Use this skill in a project

Open any RiverX project, search the Skills panel for dylantarre/animation-principles/hover-interactions, and install it in one click.

Use this skill