:only-child
Since UXP v3.0
Matches only an element with no siblings.
See: https://developer.mozilla.org/en-US/docs/Web/CSS/:only-child
Example:
Copied to your clipboard1.item:only-child {2 background-color: red;3}
Since UXP v3.0
Matches only an element with no siblings.
See: https://developer.mozilla.org/en-US/docs/Web/CSS/:only-child
Example:
Copied to your clipboard1.item:only-child {2 background-color: red;3}