CSS - :empty
The :empty
pseudo-class
represents any element that has no children at all. Only element nodes and text (including whitespace) are considered. Comments or processing instructions do not affect whether an element is considered empty or not.
Example
CSS
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.box { background: red; height: 200px; width: 200px; } .box:empty { background: lime; }
HTML
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<div class="box"><!-- I will be lime --></div> <div class="box">I will be red</div> <div class="box"> <!-- I will be red because of the whitespace around this comment --> </div>
Syntax
CSS
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:empty <a href="css/value_definition_syntax#curly_braces_(.7b_.7d)" title="Curly braces">{</a> <var>style properties</var> <a href="css/value_definition_syntax#curly_braces_(.7b_.7d)" title="Curly braces">}</a>
Description
The :empty
pseudo-class
represents any element that has no children at all. Only element nodes and text (including whitespace) are considered. Comments or processing instructions do not affect whether an element is considered empty or not.
Browser Compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | 1.0 | 1.0 (1.7 or earlier) | 9.0 | 9.5 | 3.1 |
Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | 2.1 | 1.0 (1) | 9.5 | 10.0 | 3.1 |
Specifications
Specification | Status | Comment |
---|---|---|
Selectors Level 4 The definition of ':empty' in that specification. |
Working Draft | No change |
Selectors Level 3 The definition of ':empty' in that specification. |
Recommendation | Initial definition |
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/css/:empty