Contact [email protected] ExplainerNone
SpecificationNone Summary The 'revert-rule' keyword rolls back the cascade to the previous *rule*, similar to how revert-layer <https://drafts.csswg.org/css-cascade-5/#revert-layer> rolls back the cascade to the previous *layer*. For example: ``` div { color: green; } div { color: revert-rule; /* Effectively green */ } ``` This is especially useful in combination with conditionals, as it allows eliminating the current rule if some condition is not met: ``` div { display: if(style(--layout: fancy): grid; else: revert-rule); } ``` Without 'revert-rule', you would either need to know which value exactly you would be "reverting" to (i.e. specify a literal 'block'/'inline'/etc in place of 'revert-rule'), or use 'revert-layer' (which requires wrapping your rule in an otherwise unnecessary anonymous layer). Blink componentBlink>CSS <https://issues.chromium.org/issues?q=customfield1222907:%22Blink%3ECSS%22> Motivation None Initial public proposal CSSWG resolution <https://github.com/w3c/csswg-drafts/issues/10443#issuecomment-2627865962> to add the keyword. TAG reviewNone TAG review statusPending Risks The style team was initially worried that keeping track of all (or most) of the declarations in the cascade in a "revertible" form would cause performance regressions, but the benchmarks run so far show no significant difference. Interoperability and Compatibility None *Gecko*: No signal *WebKit*: No signal *Web developers*: https://blog.kizu.dev/functional-capturing/#:~:text=This%20CSS%2Dwide%20keyword%20will%20be%C2%A0invaluable *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 about://flagsNone Finch feature nameNone Non-finch justificationNone Requires code in //chrome?False Estimated milestones No milestones specified Link to entry on the Chrome Platform Status https://chromestatus.com/feature/5146458504429568?gate=5171636433190912 This intent message was generated by Chrome Platform Status <https://chromestatus.com/>. -- You received this message because you are subscribed to the Google Groups "blink-dev" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/a/chromium.org/d/msgid/blink-dev/CAKFBnUrPRGxEbO1Uz3NnLJongnyknP%2BQ3zTRdpP%3DeFEJiza-Zg%40mail.gmail.com.
