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 Effect Hover-In Hover-Out Easing

Color Change 150ms 200ms ease-out / ease-in-out

Scale/Lift 200ms 250ms ease-out / ease-in-out

Shadow 200ms 250ms ease-out / ease-in-out

Underline Draw 200ms 200ms ease-out

Image Zoom 300ms 400ms ease-out

Icon Shift 150ms 200ms ease-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

• Touch devices don't have hover - ensure functionality without it

• Hover-in must be under 200ms to feel responsive

• Don't move elements enough to cause mis-clicks

• Test with @media (hover: hover) to scope to pointer devices

• Combine max 3 properties to avoid overwhelming

@media (hover: hover) { .card:hover { /* hover effects */ } }