all
The all shorthand CSS property resets all of an element's properties except unicode-bidi, direction, and CSS Custom Properties. It can set properties to their initial or inherited values, or to the values specified in another cascade layer or stylesheet origin.
Browser support
| Feature | Desktop | Mobile | ||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Safari | Chrome Android | Safari iOS | |
| 37 | 79 | 27 | 9.1 | 37 | 9.3 | |
1+Supported (version) Not supported ※Has note Sub-feature descriptions sourced from MDN Web Docs (CC BY-SA 2.5)
Syntax
CSS
/* all */
/* See MDN Web Docs for details */Use cases
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Maintainable CSS architecture
Use all to make stylesheet intent clearer in larger codebases and shared design systems.
-
Fallback management
Control resets, imports, inheritance, or feature branches with explicit CSS rules instead of ad hoc duplication.
Cautions
- Cascade-level tools are powerful, so misuse can make style ownership harder to understand.
- Keep rules scoped and documented when they affect many selectors or entire stylesheets.
Accessibility
- Global CSS controls should not accidentally remove focus, contrast, or structural cues.
- Fallback paths should remain readable and functional, especially for assistive-technology users.