Non-standard This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The :-moz-ui-valid
CSS pseudo-class represents any validated form element whose value validates correctly based on its validation constraints.
This pseudo-class is applied according to the following rules:
- If the control does not have focus, and the value is valid, apply this pseudo-class.
- If the control has focus, and the value was valid (including empty) when it gained focus, apply this pseudo-class.
- If the control has focus, and the value was invalid when it gained focus, re-validate on every keystroke.
- If the element is required, the preceding rules apply only if the user has changed the value or attempted to submit the form.
The result is that if the control was valid when the user started interacting with it, the validity styling is changed only when the user shifts focus to another control. However, if the user is trying to correct a previously-flagged value, the control shows immediately when the value becomes valid. Required items are flagged as invalid only if the user changes them or attempts to submit an unchanged invalid value.
Syntax
Syntax not found in DB!
Specifications
Not part of any standard.
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Chrome
No support No |
Edge
No support No |
Firefox
Full support 4 |
IE
No support No |
Opera
No support No |
Safari
No support No |
WebView Android
No support No |
Chrome Android
No support No |
Firefox Android
Full support 4 |
Opera Android
No support No |
Safari iOS
No support No |
Samsung Internet Android
No support No |
Legend
- Full support
- Full support
- No support
- No support
- Non-standard. Expect poor cross-browser support.'
- Non-standard. Expect poor cross-browser support.
See also
:-moz-ui-valid by Mozilla Contributors is licensed under CC-BY-SA 2.5.