# Blob cap button

https://fieldbook.lizardi.mx/components/blob-cap-button

Category: Buttons
![Still of the Blob cap button component, a Fieldbook UI component in Buttons.](https://fieldbook.lizardi.mx/thumbs/blob-cap-button.webp)
Preview video: https://ejpqcxcjbiyabxkx.public.blob.vercel-storage.com/previews/blob-cap-button-a1c0be2462.mp4 (5 s, silent)

Blob cap button: A capsule button with a single-hue liquid blob that swells from a resting corner mark to fill the shape on hover.

## Frameworks

react, vue, svelte, astro, html

## Preview controls

These controls are passed to the demo. Defaults and limits describe the preview; consult the implementation for its full prop API.

| Name | Type | Default | Options or constraints |
| --- | --- | --- | --- |
| label | text | Remix | Up to 16 characters |
| accent | color | #FF4D8D | No additional limit in the metadata. |
| spread | number | 40 | From 10 to 90; step 5 |
| blur | number | 10 | From 2 to 24; step 1 |
| growth | number | 1.3 | From 1 to 1.8; step 0.05 |

## Usage notes

Blob cap button uses the inline preview frame with a light/dark theme setting.

### Which frameworks are available for Blob cap button?

Blob cap button is available for React, Vue, Svelte, Astro, HTML. The live preview uses React; the source observations below apply to index.tsx. Check the selected port before relying on the same interactions.

### What does Blob cap button depend on?

The React metadata lists no additional npm dependencies beyond React.

### What accessibility details are visible in Blob cap button?

The React source for Blob cap button includes: native elements (button); attributes and handlers (aria-hidden, onKeyDown, onKeyUp); key comparisons (Enter, Space). These are source observations. Verify accessible names, focus order and keyboard behavior in the composed page.

### How does Blob cap button handle reduced motion?

Blob cap button reads the motion preference in its React source through matchMedia(prefers-reduced-motion). Check the full implementation, shared styles and selected port with reduced motion enabled; these observations do not establish that every animation stops.

## Install through MCP

Connect your client, call get_component to retrieve the implementation, then get_install_command for installation instructions. Choose a listed framework, integrate the returned source and verify it in your application.

```json
{
  "tool": "get_component",
  "arguments": {
    "slug": "blob-cap-button",
    "framework": "react"
  }
}
```

[For agents](https://fieldbook.lizardi.mx/docs/agents)
[MCP](https://fieldbook.lizardi.mx/api/mcp)

## Related open components

- [Diagonal blob flood button](https://fieldbook.lizardi.mx/components/diagonal-blob-flood-button)
- [Draining fill button](https://fieldbook.lizardi.mx/components/draining-fill-button-2)
- [Elevation ladder fill button](https://fieldbook.lizardi.mx/components/elevation-ladder-fill-button)
- [Nested capsule button](https://fieldbook.lizardi.mx/components/nested-capsule-button)
- [Amber upload pill](https://fieldbook.lizardi.mx/components/amber-upload-pill)
- [Arrow to label pill](https://fieldbook.lizardi.mx/components/arrow-to-label-pill)