New "outline-offset: inset" should be mentioned

### MDN URL

https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/outline-offset

### What specific section or headline is this issue about?

All of them

### What information was incorrect, unhelpful, or incomplete?

Webkit implemented in Safari Technology Preview "outline-offset: inset" which adds a keyword value support to outline-offset (perviously only)

All this information is missing

### What did you expect to see?

"inset" in definition, syntax, examples, browsers support

### Do you have any supporting links, references, or citations?

commit - https://github.com/WebKit/WebKit/commit/a69b24040c7a7b89336307285d1a4ddd306a2531
discussion - https://github.com/w3c/csswg-drafts/issues/13765

### Do you have anything more you want to share?

_No response_

### MDN metadata

Page report details

* Folder: `en-us/web/css/reference/properties/outline-offset`
* MDN URL: https://developer.mozilla.org/en-US/docs/Web/CSS/Reference/Properties/outline-offset
* GitHub URL: https://github.com/mdn/content/blob/main/files/en-us/web/css/reference/properties/outline-offset/index.md
* Last commit: https://github.com/mdn/content/commit/bcbb4bd6a80292c0663b723d5466759cfaaa8315
* Document last modified: 2026-04-20T01:47:07.000Z

Start with files/en-us/web/css/reference/properties/outline-offset/index.md and review the current definition, syntax, examples, and browser-compatibility information. Check the linked WebKit commit and CSSWG discussion for the proposed "inset" value. Done means all requested sections accurately mention the new value and the page reflects its support status.

Written by the indexing model from the issue text.