This is an experimental technology
Check the Browser compatibility table carefully before using this in production.
The ::grammar-error CSS pseudo-element represents a text segment which the user agent has flagged as grammatically incorrect.
::grammar-error {
color: green;
} Only a small subset of CSS properties can be used in a rule with ::grammar-error in its selector:
colorbackground-colorcursorcaret-coloroutline and its longhandstext-decoration and its associated propertiestext-emphasis-colortext-shadow::grammar-error
| Specification | Status | Comment |
|---|---|---|
| CSS Pseudo-Elements Level 4 The definition of '::grammar-error' in that specification. | Working Draft | Initial definition. |
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | ? | ? | ? | ? | ? | ? |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | ? | ? | ? | ? | ? | ? | ? |
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https://developer.mozilla.org/en-US/docs/Web/CSS/::grammar-error