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>).
:blank
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.
<textarea></textarea>
textarea:blank { border: 3px solid red; }
| Specification |
|---|
| Selectors Level 4 # blank-pseudo |
| 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
See bug 1197736.
|
No |
No |
No |
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https://developer.mozilla.org/en-US/docs/Web/CSS/:blank