# Objective

Fixes #59304

Right now inline html tags don't render with any kind of highlighting,
despite the fact that non-inline html tags do get highlighting.

## Solution

Right now zed already has tree-sitter rules that identifies the inline
blocks so we can add a new tree-sitter grammar rule,
```
((html_tag) @injection.content
  (#set! injection.language "html")
  (#set! injection.combined))
```
that passes these blocks to the html language server.

## Testing

I did some manual testing:


https://github.com/user-attachments/assets/92e5b322-bbc1-48c3-a615-0d32acc2e7d6

And also added a test:
test_markdown_inline_html_highlighting


## Self-Review Checklist:

- [x] I've reviewed my own diff for quality, security, and reliability
- [x] Unsafe blocks (if any) have justifying comments
- [x] The content adheres to Zed's UI standards
([UX/UI](https://github.com/zed-industries/zed/blob/main/CONTRIBUTING.md#uiux-checklist)
and
[icon](https://github.com/zed-industries/zed/blob/main/crates/icons/README.md)
guidelines)
- [x] Tests cover the new/changed behavior
- [x] Performance impact has been considered and is acceptable

---

Release Notes:

- markdown: Fixed inline html block highlighting.