: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

Specification
Selectors Level 4 (Selectors 4) # blank-pseudo

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	No See bug 1197736.	No	No	No	No	No	No	No	No	No