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:-moz-submit-invalid

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-submit-invalid CSS pseudo-class is a Mozilla extension that represents any submit <button> on forms whose contents aren't valid based on their validation constraints.

By default, no style is applied. You can use this pseudo-class to customize the appearance of the submit button when there are invalid form fields.

Syntax

:-moz-submit-invalid {
  /* ... */
}

Specifications

Not part of any standard.

Browser compatibility

Desktop Mobile
Chrome Edge Firefox Internet Explorer Opera Safari WebView Android Chrome Android Firefox for Android Opera Android Safari on IOS Samsung Internet
:-moz-submit-invalid No No
88From Firefox 88 the feature has been placed behind a flag. See bug 1694129.
4–88
No No No No No
4–88From version 88, the feature has been withdrawn. See bug 1694129.
No No No

See also

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https://developer.mozilla.org/en-US/docs/Web/CSS/:-moz-submit-invalid