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:blank

Experimental: This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

Note: The :blank selector is considered at risk, as the CSSWG keeps changing it.

See CSSWG issue #1967.

The :blank CSS pseudo-class selects empty user input elements (e.g. <input> or <textarea>).

Syntax

:blank {
  /* ... */
}

Examples

Simple :blank example

In eventual supporting browsers, the :blank pseudo-class will enable developers to highlight in some way input controls that are not required, but still have no content filled in, perhaps as a reminder to users.

HTML

<textarea></textarea>

CSS

textarea:blank {
  border: 3px solid red;
}

Result

Specifications

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
:blank No No
NoSee bug 1197736.
No No No No No
NoSee bug 1197736.
No No No

See also

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https://developer.mozilla.org/en-US/docs/Web/CSS/:blank