Contact emails

[email protected], [email protected] 

Explainer

https://github.com/whatwg/html/issues/5033

Specification

(Not yet available)

Summary

Adding a `headingstart=` attribute to Element nodes, that influences the child 
`h1`-`h6` elements' heading levels.



Blink component

Blink>DOM 
<https://bugs.chromium.org/p/chromium/issues/list?q=component:Blink%3EDOM>

Motivation

Websites which allow users to write comments or documents (User Generated 
Content - UGC) rely on users to produce meaningful heading structures for their 
written content. This can be difficult for a user where this content is 
presented on different surfaces (web pages or applications) that have different 
document structures. Giving web developers a headingstart attribute frees users 
from trying to pick the correct heading level (they can always start their 
comment or document at h1), and makes it significantly easier for web 
developers to render blocks of UGC without rewriting the UGC authors defined 
heading structures.



Initial public proposal

https://github.com/whatwg/html/issues/5033

TAG review

None

TAG review status

Pending

Risks



Interoperability and Compatibility

None



*Gecko*: No signal

*WebKit*: No signal

*Web developers*: Positive

*Other signals*:

WebView application risks

Does this intent deprecate or change behavior of existing APIs, such that it 
has potentially high risk for Android WebView-based applications?

None



Debuggability

None



Is this feature fully tested by web-platform-tests 
<https://chromium.googlesource.com/chromium/src/+/main/docs/testing/web_platform_tests.md>?

No

Flag name on chrome://flags

Experimental Web Platform Features

Finch feature name

None

Non-finch justification

None

Requires code in //chrome?

False

Estimated milestones

No milestones specified



Link to entry on the Chrome Platform Status

https://chromestatus.com/feature/5090991750250496

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