# Foreign content

SVG or MathML content parsed within an HTML document under its own namespace rules.

## What is **Foreign content**?

**Foreign content** — SVG or MathML content parsed within an HTML document under its own namespace rules.

```html
<svg viewBox="0 0 100 100" aria-label="Status: complete">
  <circle cx="50" cy="50" r="40"></circle>
</svg>
```

Level: Master · [More HTML terms at this level](https://www.ask-codey.com/glossary/subjects/html/master)

Updated: September 27, 2026

Source: https://www.ask-codey.com/glossary/foreign-content