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.
:empty { style properties }
.box { background: red; height: 200px; width: 200px; } .box:empty { background: lime; }
<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>
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 |
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 |
© 2005–2017 Mozilla Developer Network and individual contributors.
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-US/docs/Web/CSS/:empty