This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for the proper prefixes to use in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the spec changes.
The ::grammar-error CSS pseudo-element represents a text segment which the browser has flagged as having grammatical error(s).
Only a small subset of CSS properties can be used in a rule using ::grammar-error in its selector: color, background-color, cursor, text-emphasis-color, text-shadow, outline and its longhands, text-decoration and its associated properties.
| Specification | Status | Comment |
|---|---|---|
| CSS Pseudo-Elements Level 4 The definition of '::grammar-error' in that specification. | Working Draft | Initial definition |
| Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|
| Basic support | ? | ? | ? | ? | ? |
| Feature | Android | Chrome for Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
|---|---|---|---|---|---|---|
| Basic support | ? | ? | ? | ? | ? | ? |
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https://developer.mozilla.org/en-US/docs/Web/CSS/::grammar-error