Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.
The :-moz-last-node
CSS pseudo-class is a Mozilla extension that represents any element that is the last child node of some other element. It differs from :last-child
because it does not match a last-child element with (non-whitespace) text after it.
Note: Any whitespace at the end of an element is ignored for the determination of :-moz-last-node
.
:-moz-last-node
span:-moz-last-node { background-color: lime; }
<p> <span>This does not match.</span> <span>This matches!</span> </p> <p> <span>This doesn't match because it's followed by text.</span> Blahblah. </p>
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https://developer.mozilla.org/en-US/docs/Web/CSS/:-moz-last-node