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Component Lab / navigation-layout / elastic-blob-toggle

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Elastic blob toggle

A labeled binary preference control built from a native aria-pressed button. Its three-part gel thumb stretches across the track before reforming, while the visible text and programmatic state update together.

Lab tested Responsive Dark mode Interactive
Version
1.0.0
Updated
2026-08-02
Dependencies
Zero
Preparing the interactive workbench…

Implementation field notes

Use elastic blob toggle confidently.

The preview and source are only the starting point. Use these notes to decide where the component fits, preserve its accessibility contract, and verify the adapted result.

Good fit for

  • Creative settings
  • Motion preferences
  • Feature controls

This toggles and switches pattern works best when its purpose is clear in the surrounding page hierarchy.

Accessibility contract

  • The native button exposes current state through aria-pressed.
  • A visible label and status describe the preference.
  • Reduced motion moves the thumb without stretching or delayed lobes.

Integration plan

  1. Copy the standalone HTML and scoped CSS into an isolated page.
  2. Adapt off track, on track, blob color, text color through the Inspector.
  3. Connect the defensive JavaScript, then test every control with a keyboard.
  4. Review the result at 375, 768, 1024, and 1440 pixels before shipping.

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