Update "CSS features reference"

[mikehoffms]

Rendered article sections for review:

• CSS features reference
  • /devtools/css/reference.md
  • Internal preview: https://review.learn.microsoft.com/microsoft-edge/devtools/css/reference?branch=pr-en-us-3771
  • External preview: https://github.com/MicrosoftDocs/edge-developer/blob/user/mikehoffms/css-ref/microsoft-edge/devtools/css/reference.md
  • Before/live: https://learn.microsoft.com/microsoft-edge/devtools/css/reference
  • Upstream: https://developer.chrome.com/docs/devtools/css/reference/
  • Revealed headings.
  • Updated local TOC.
  • Populated text in sections.
  • Populated pngs in sections.
  • todo: link to missing docs.

AB#60101398

[learn-build-service-prod]

Learn Build status updates of commit 1abdfd9:

💡 Validation status: suggestions

File	Status	Preview URL	Details
microsoft-edge/devtools/css/reference.md	💡Suggestion	View	Details

microsoft-edge/devtools/css/reference.md

• Line 303, Column 106: [Suggestion: other-site-link-broken - See documentation] Link 'https://developer.mozilla.org/docs/Web/CSS/--' points to a page that doesn't exist. Check the path or URL and update the link.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

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[learn-build-service-prod]

Learn Build status updates of commit 6383e56:

✅ Validation status: passed

File	Status	Preview URL	Details
microsoft-edge/devtools/css/reference.md	✅Succeeded	View

For more details, please refer to the build report.

[mikehoffms]

link, like in upstream https://developer.chrome.com/docs/devtools/css/reference/#links

[mikehoffms]

make sure links accounted for (global in article new sections)

[mikehoffms]

Suggested change

* And more.

redun w/ lead-in "but not limited to"

[mikehoffms]

Suggested change

	Here are some of them highlighted:
	Here are some of the foo highlighted:

be specific, avoid pronouns

[learn-build-service-prod]

PoliCheck Scan Report

The following report lists PoliCheck issues in PR files. Before you merge the PR, you must fix all severity-1 and severity-2 issues. The AI Review Details column lists suggestions for either removing or replacing the terms. If you find a false positive result, mention it in a PR comment and include this text: #policheck-false-positive. This feedback helps reduce false positives in future scans.

✅ No issues found

More information about PoliCheck

Information: PoliCheck | Severity Guidance | Term
For any questions: Try searching the learn.microsoft.com contributor guides or post your question in the Learn support channel.

[learn-build-service-prod]

Learn Build status updates of commit 5ed701e:

✅ Validation status: passed

File	Status	Preview URL	Details
microsoft-edge/devtools/css/reference.md	✅Succeeded	View

For more details, please refer to the build report.