# BlogMediaImage

> Blog-optimized responsive image: renders raster sources through next/image and SVG sources as a plain img, with a fill mode (cover/contain fit) and a fluid full-bleed mode for raster images.

- Status: stable
- Group: media
- Page: https://www.digitaltableteur.com/design-system/components/blog-media-image
- Contract: https://www.digitaltableteur.com/contracts/v1/BlogMediaImage.contract.json

## When to use

Responsive article image sized for the blog's prose measure. Renders raster sources through next/image and SVG sources as a plain img. Use inside article bodies instead of a raw img.

## When not to use

- Do not use a raw `<img>` in article bodies; this component handles SVG, external and sizing concerns.

## Look-alikes

The contract names no look-alike with a deciding condition.

## Props

| Prop | Type | Default | Description | Required |
| --- | --- | --- | --- | --- |
| `src` | `string` | none | No description in the contract. | Yes |
| `alt` | `string` | none | No description in the contract. | Yes |
| `fill` | `boolean` | none | No description in the contract. | No |
| `width` | `number` | none | Intrinsic width. Raster images without fill fall back to 800 when omitted; SVG sources pass it through as the width attribute. | No |
| `height` | `number` | none | Intrinsic height. Raster images without fill fall back to 400 when omitted; SVG sources pass it through as the height attribute. | No |
| `className` | `string` | none | No description in the contract. | No |
| `priority` | `boolean` | `false` | No description in the contract. | No |
| `sizes` | `string` | none | No description in the contract. | No |
| `onLoad` | `() => void` | none | No description in the contract. | No |
| `onError` | `() => void` | none | No description in the contract. | No |
| `fit` | `"cover" \| "contain"` | `cover` | Object fit in fill mode only: contain for diagram heroes, cover (the default) for photos. Ignored when fill is not set. | No |
| `fluid` | `boolean` | `false` | Raster images without fill only: when true the image spans its container (no max-width cap from the width prop). SVG sources and fill mode ignore it. | No |

## Variants

- Available fits: `cover`, `contain` (default `cover`).

## Invalid combinations

The contract records no invalid combinations.

## Keyboard

The contract records no keyboard interaction.

## Rules

Every item under When not to use is a MUST NOT. MUST and SHOULD follow RFC 2119.

| Level | Rule | How it is checked |
| --- | --- | --- |
| MUST | ARIA: Requires meaningful alt text; decorative uses should pass an empty alt. | Not yet verified: no evidence record. WCAG 4.1.2. |
| MUST | Required stories produce no axe violations at the configured severity. | Automated by `npm run test:stories:matrix:ci`. WCAG 2.5.8. |
| MUST | The accessibility tree (role, name, state) matches the committed snapshot for every required story. | Automated by `npm run test:stories:matrix:ci`. WCAG 1.3.1, 4.1.2. |
| MUST | The component remains legible and operable under a real browser forced-colors: active pass. | Automated by `npm run test:stories:hc`. |
| MUST | A human completed an end-to-end accessibility review of this component. | Manual review, last on 2026-11-04. |
| MUST NOT | Maintainers: Do not invent parallel primitives inside this folder. | Release review; not machine-checked. |

## Install and import

- In-repo only. BlogMediaImage is not exported from `@digitaltableteur/react`, so there is no public import path.

## Links

- Machine-readable contract (Design System Contract 1.0): https://www.digitaltableteur.com/contracts/v1/BlogMediaImage.contract.json
- Markdown version of this page: https://www.digitaltableteur.com/design-system/components/blog-media-image.md
- Component index as JSON: https://www.digitaltableteur.com/design-system/components.json
- All components: https://www.digitaltableteur.com/design-system/components
- Source: The implementation lives in a private repository. This page, its Markdown twin and the contract are generated from it at build time and are the public source of truth.