Contact emailsfuth...@chromium.org

ExplainerNone

Specificationhttps://drafts.csswg.org/css-overflow-3/#overflow-control

Summary

The overflow-inline and overflow-block CSS properties allow setting
overflow in inline and block direction relative to the writing-mode. In a
horizontal writing-mode overflow-inline maps to overflow-x, while in a
vertical writing-mode it maps to overflow-y.


Blink componentBlink>CSS
<https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECSS%22>

TAG reviewNone

TAG review statusNot applicable

Risks


Interoperability and Compatibility

The relevant properties overflow-block and overflow-inline are part of
Interop 2025. Firefox already ships and It's highly likely that Safari also
will ship this year.


*Gecko*: Shipped/Shipping

*WebKit*: Positive Accepted as part of interop 2025

*Web developers*: No signals

*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

Will be possible to inspect and change via devtools like any other
property. In particular the existing overflow properties.


Will this feature be supported on all six Blink platforms (Windows, Mac,
Linux, ChromeOS, Android, and Android WebView)?Yes

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

https://wpt.live/css/css-overflow/inheritance.html
https://wpt.live/css/css-overflow/logical-overflow-001.html
https://wpt.live/css/css-overflow/parsing/overflow-computed.html
https://wpt.live/css/css-overflow/parsing/overflow-invalid.html
https://wpt.live/css/css-overflow/parsing/overflow-valid.html


Flag name on about://flags--enable-blink-features=CSSLogicalOverflow

Finch feature nameCSSLogicalOverflow

Requires code in //chrome?False

Tracking bughttps://crbug.com/41489999

Estimated milestones
Shipping on desktop 135
DevTrial on desktop 77
Shipping on Android 135
DevTrial on Android 77
Shipping on WebView 135

Anticipated spec changes

Open questions about a feature may be a source of future web compat or
interop issues. Please list open issues (e.g. links to known github issues
in the project for the feature specification) whose resolution may
introduce web compat/interop risk (e.g., changing to naming or structure of
the API in a non-backward-compatible way).
None

Link to entry on the Chrome Platform Status
https://chromestatus.com/feature/4728308937523200?gate=5083464346632192

This intent message was generated by Chrome Platform Status
<https://chromestatus.com/>.

-- 
Rune Lillesveen

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