:only-child CSS Pseudo Class
Description
The :only-child pseudo-class applies to a child only if it is the only parent. Same as using :first-child:last-child or :nth-child(1):nth-last-child(1).
Syntax
element:only-child { … }
Example
<div>
<div>I am an only child.</div>
</div>
<div>
<div>I am the 1st sibling.</div>
<div>I am the 2nd sibling.</div>
<div>I am the 3rd sibling, <div>but this is an only child.</div></div>
</div>div:only-child {
color: red;
}
div {
display: inline-block;
margin: 6px;
outline: 1px solid;
}Browser Support
| Desktop | |||||
 |
 |
 |
 |
 |
 |
| 9 | 12 | 2 | 1.5 | 9.5 | 3.1 |
| Tablets / Mobile | |||||
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|
 |
| ≤37 | 18 | 4 | 10.1 | 3.1 | Yes |