VercelSidebar [example] v1.0.0

The Vercel dashboard sidebar transitions between expanded (240px) and collapsed (56px) states using a CSS width transition with overflow: hidden on the nav container. Icon-only mode preserves all navigation affordances via tooltips. The transition duration is ~200ms with an ease-out curve, making the collapse feel snappy without jarring.

Label

Vercel Dashboard — Sidebar Collapse Animation

Url

https://vercel.com/dashboard

Observed

2024-Q3

Demonstrates

• Navigation icons remain actionable in collapsed state via tooltip disclosure.
• The 200ms ease-out is long enough to perceive motion but short enough to not feel sluggish on repeat use.
• Active state is preserved during and after collapse (highlighted icon stays highlighted).
• Keyboard users can still navigate all items; the collapse toggle is a visible button with aria-label.

Quality Signals

• zero layout shift on toggle — sibling content reflows smoothly
• persists collapsed/expanded state in localStorage across page loads
• respects prefers-reduced-motion: disables the width transition

VercelSidebar [example] v1.0.0

The Vercel dashboard sidebar transitions between expanded (240px) and collapsed (56px) states using a CSS width transition with overflow: hidden on the nav container. Icon-only mode preserves all navigation affordances via tooltips. The transition duration is ~200ms with an ease-out curve, making the collapse feel snappy without jarring.

Label

Vercel Dashboard — Sidebar Collapse Animation

Url

https://vercel.com/dashboard

Observed

2024-Q3

Demonstrates

• Navigation icons remain actionable in collapsed state via tooltip disclosure.
• The 200ms ease-out is long enough to perceive motion but short enough to not feel sluggish on repeat use.
• Active state is preserved during and after collapse (highlighted icon stays highlighted).
• Keyboard users can still navigate all items; the collapse toggle is a visible button with aria-label.

Quality Signals

• zero layout shift on toggle — sibling content reflows smoothly
• persists collapsed/expanded state in localStorage across page loads
• respects prefers-reduced-motion: disables the width transition

Label

Vercel Dashboard — Sidebar Collapse Animation

Url

https://vercel.com/dashboard

Observed

2024-Q3

Demonstrates

• Navigation icons remain actionable in collapsed state via tooltip disclosure.
• The 200ms ease-out is long enough to perceive motion but short enough to not feel sluggish on repeat use.
• Active state is preserved during and after collapse (highlighted icon stays highlighted).
• Keyboard users can still navigate all items; the collapse toggle is a visible button with aria-label.

Quality Signals

• zero layout shift on toggle — sibling content reflows smoothly
• persists collapsed/expanded state in localStorage across page loads
• respects prefers-reduced-motion: disables the width transition