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:blank

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

Specification	Status	Comment
Selectors Level 4 The definition of ':blank' in that specification.	Working Draft	Initial definition.

Browser compatibilityUpdate compatibility data on GitHub

	Desktop
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari
`:blank`	No	No	No No See bug 1197736.	No	No	No

	Mobile
	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`:blank`	No	No	No	No	No	No